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Finding the Fourth Proportional to 539,625.32, 744,672.60 and 297,915.36

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Solution

The fourth proportional to 539,625.32, 744,672.60 and 297,915.36 is: 411,117.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,625.32 : 744,672.60 = 297,915.36 : x
  2. Step 2: Convert to fraction form
    539,625.32/744,672.60 = 297,915.36/x
  3. Step 3: Cross multiply
    539,625.32x = 744,672.60 × 297,915.36
  4. Step 4: Simplify right side
    539,625.32x = 221,849,405,711.14
  5. Step 5: Solve for x
    x = 221,849,405,711.14/539,625.32
  6. Step 6: Final answer
    x = 411,117.49

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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.