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Finding the Fourth Proportional to 573,531.16, 791,493.33 and 315,428.07

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Solution

The fourth proportional to 573,531.16, 791,493.33 and 315,428.07 is: 435,301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,531.16 : 791,493.33 = 315,428.07 : x
  2. Step 2: Convert to fraction form
    573,531.16/791,493.33 = 315,428.07/x
  3. Step 3: Cross multiply
    573,531.16x = 791,493.33 × 315,428.07
  4. Step 4: Simplify right side
    573,531.16x = 249,659,209,542.31
  5. Step 5: Solve for x
    x = 249,659,209,542.31/573,531.16
  6. Step 6: Final answer
    x = 435,301.91

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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.