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Finding the Fourth Proportional to 497,517.69, 686,592.95 and 282,694.17

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Solution

The fourth proportional to 497,517.69, 686,592.95 and 282,694.17 is: 390,128.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,517.69 : 686,592.95 = 282,694.17 : x
  2. Step 2: Convert to fraction form
    497,517.69/686,592.95 = 282,694.17/x
  3. Step 3: Cross multiply
    497,517.69x = 686,592.95 × 282,694.17
  4. Step 4: Simplify right side
    497,517.69x = 194,095,822,714.63
  5. Step 5: Solve for x
    x = 194,095,822,714.63/497,517.69
  6. Step 6: Final answer
    x = 390,128.49

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1.5x scale

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.