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Finding the Fourth Proportional to 576,497.16, 864,278.28 and 239,789.70

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Solution

The fourth proportional to 576,497.16, 864,278.28 and 239,789.70 is: 359,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,497.16 : 864,278.28 = 239,789.70 : x
  2. Step 2: Convert to fraction form
    576,497.16/864,278.28 = 239,789.70/x
  3. Step 3: Cross multiply
    576,497.16x = 864,278.28 × 239,789.70
  4. Step 4: Simplify right side
    576,497.16x = 207,245,029,477.72
  5. Step 5: Solve for x
    x = 207,245,029,477.72/576,497.16
  6. Step 6: Final answer
    x = 359,490.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.