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Finding the Fourth Proportional to 709,795.36, 979,305.36 and 454,702.24

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Solution

The fourth proportional to 709,795.36, 979,305.36 and 454,702.24 is: 627,353.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,795.36 : 979,305.36 = 454,702.24 : x
  2. Step 2: Convert to fraction form
    709,795.36/979,305.36 = 454,702.24/x
  3. Step 3: Cross multiply
    709,795.36x = 979,305.36 × 454,702.24
  4. Step 4: Simplify right side
    709,795.36x = 445,292,340,836.01
  5. Step 5: Solve for x
    x = 445,292,340,836.01/709,795.36
  6. Step 6: Final answer
    x = 627,353.13

Related Problems

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Half scale
Find fourth proportional to 1,419,590.72, 1,958,610.72 and 909,404.48
Double scale
Find fourth proportional to 709,796.36, 979,306.74 and 454,703.24
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.