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Finding the Fourth Proportional to 539,715.44, 744,818.88 and 298,013.28

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Solution

The fourth proportional to 539,715.44, 744,818.88 and 298,013.28 is: 411,264.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,715.44 : 744,818.88 = 298,013.28 : x
  2. Step 2: Convert to fraction form
    539,715.44/744,818.88 = 298,013.28/x
  3. Step 3: Cross multiply
    539,715.44x = 744,818.88 × 298,013.28
  4. Step 4: Simplify right side
    539,715.44x = 221,965,917,434.73
  5. Step 5: Solve for x
    x = 221,965,917,434.73/539,715.44
  6. Step 6: Final answer
    x = 411,264.72

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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.