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Finding the Fourth Proportional to 573,209.04, 791,026.20 and 315,103.32

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Solution

The fourth proportional to 573,209.04, 791,026.20 and 315,103.32 is: 434,841.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,209.04 : 791,026.20 = 315,103.32 : x
  2. Step 2: Convert to fraction form
    573,209.04/791,026.20 = 315,103.32/x
  3. Step 3: Cross multiply
    573,209.04x = 791,026.20 × 315,103.32
  4. Step 4: Simplify right side
    573,209.04x = 249,254,981,826.98
  5. Step 5: Solve for x
    x = 249,254,981,826.98/573,209.04
  6. Step 6: Final answer
    x = 434,841.33

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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.