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Finding the Fourth Proportional to 459,141.80, 688,712.70 and 246,565.40

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Solution

The fourth proportional to 459,141.80, 688,712.70 and 246,565.40 is: 369,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,141.80 : 688,712.70 = 246,565.40 : x
  2. Step 2: Convert to fraction form
    459,141.80/688,712.70 = 246,565.40/x
  3. Step 3: Cross multiply
    459,141.80x = 688,712.70 × 246,565.40
  4. Step 4: Simplify right side
    459,141.80x = 169,812,722,360.58
  5. Step 5: Solve for x
    x = 169,812,722,360.58/459,141.80
  6. Step 6: Final answer
    x = 369,848.10

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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.