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Finding the Fourth Proportional to 719,063.37, 992,306.25 and 396,773.22

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Solution

The fourth proportional to 719,063.37, 992,306.25 and 396,773.22 is: 547,546.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,063.37 : 992,306.25 = 396,773.22 : x
  2. Step 2: Convert to fraction form
    719,063.37/992,306.25 = 396,773.22/x
  3. Step 3: Cross multiply
    719,063.37x = 992,306.25 × 396,773.22
  4. Step 4: Simplify right side
    719,063.37x = 393,720,546,038.63
  5. Step 5: Solve for x
    x = 393,720,546,038.63/719,063.37
  6. Step 6: Final answer
    x = 547,546.38

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Half scale
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Double scale
Find fourth proportional to 719,064.37, 992,307.63 and 396,774.22
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.