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Finding the Fourth Proportional to 573,718.60, 791,746.43 and 315,602.17

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Solution

The fourth proportional to 573,718.60, 791,746.43 and 315,602.17 is: 435,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,718.60 : 791,746.43 = 315,602.17 : x
  2. Step 2: Convert to fraction form
    573,718.60/791,746.43 = 315,602.17/x
  3. Step 3: Cross multiply
    573,718.60x = 791,746.43 × 315,602.17
  4. Step 4: Simplify right side
    573,718.60x = 249,876,895,400.66
  5. Step 5: Solve for x
    x = 249,876,895,400.66/573,718.60
  6. Step 6: Final answer
    x = 435,539.13

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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.