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Finding the Fourth Proportional to 611,095.68, 916,687.68 and 255,752.16

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Solution

The fourth proportional to 611,095.68, 916,687.68 and 255,752.16 is: 383,646.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,095.68 : 916,687.68 = 255,752.16 : x
  2. Step 2: Convert to fraction form
    611,095.68/916,687.68 = 255,752.16/x
  3. Step 3: Cross multiply
    611,095.68x = 916,687.68 × 255,752.16
  4. Step 4: Simplify right side
    611,095.68x = 234,444,854,205.39
  5. Step 5: Solve for x
    x = 234,444,854,205.39/611,095.68
  6. Step 6: Final answer
    x = 383,646.72

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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.