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Finding the Fourth Proportional to 676,752.57, 935,150.27 and 643,957.29

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Solution

The fourth proportional to 676,752.57, 935,150.27 and 643,957.29 is: 889,833.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,752.57 : 935,150.27 = 643,957.29 : x
  2. Step 2: Convert to fraction form
    676,752.57/935,150.27 = 643,957.29/x
  3. Step 3: Cross multiply
    676,752.57x = 935,150.27 × 643,957.29
  4. Step 4: Simplify right side
    676,752.57x = 602,196,830,392.18
  5. Step 5: Solve for x
    x = 602,196,830,392.18/676,752.57
  6. Step 6: Final answer
    x = 889,833.09

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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.