Home / 717,895.44-990,702.36-395,617.10

Finding the Fourth Proportional to 717,895.44, 990,702.36 and 395,617.10

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Solution

The fourth proportional to 717,895.44, 990,702.36 and 395,617.10 is: 545,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,895.44 : 990,702.36 = 395,617.10 : x
  2. Step 2: Convert to fraction form
    717,895.44/990,702.36 = 395,617.10/x
  3. Step 3: Cross multiply
    717,895.44x = 990,702.36 × 395,617.10
  4. Step 4: Simplify right side
    717,895.44x = 391,938,789,672.84
  5. Step 5: Solve for x
    x = 391,938,789,672.84/717,895.44
  6. Step 6: Final answer
    x = 545,955.26

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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.