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Finding the Fourth Proportional to 545,957.52, 753,332.72 and 316,470

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Solution

The fourth proportional to 545,957.52, 753,332.72 and 316,470 is: 436,677.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,957.52 : 753,332.72 = 316,470 : x
  2. Step 2: Convert to fraction form
    545,957.52/753,332.72 = 316,470/x
  3. Step 3: Cross multiply
    545,957.52x = 753,332.72 × 316,470
  4. Step 4: Simplify right side
    545,957.52x = 238,407,205,898.40
  5. Step 5: Solve for x
    x = 238,407,205,898.40/545,957.52
  6. Step 6: Final answer
    x = 436,677.21

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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.