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Finding the Fourth Proportional to 573,353.10, 791,158.52 and 315,187.47

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Solution

The fourth proportional to 573,353.10, 791,158.52 and 315,187.47 is: 434,920.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,353.10 : 791,158.52 = 315,187.47 : x
  2. Step 2: Convert to fraction form
    573,353.10/791,158.52 = 315,187.47/x
  3. Step 3: Cross multiply
    573,353.10x = 791,158.52 × 315,187.47
  4. Step 4: Simplify right side
    573,353.10x = 249,363,253,075.71
  5. Step 5: Solve for x
    x = 249,363,253,075.71/573,353.10
  6. Step 6: Final answer
    x = 434,920.91

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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.