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Finding the Fourth Proportional to 969,686.92, 1,338,261 and 539,966.92

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Solution

The fourth proportional to 969,686.92, 1,338,261 and 539,966.92 is: 745,206.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,686.92 : 1,338,261 = 539,966.92 : x
  2. Step 2: Convert to fraction form
    969,686.92/1,338,261 = 539,966.92/x
  3. Step 3: Cross multiply
    969,686.92x = 1,338,261 × 539,966.92
  4. Step 4: Simplify right side
    969,686.92x = 722,616,670,326.12
  5. Step 5: Solve for x
    x = 722,616,670,326.12/969,686.92
  6. Step 6: Final answer
    x = 745,206.16

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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.