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Finding the Fourth Proportional to 586,864.91, 880,624.44 and 316,987.61

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Solution

The fourth proportional to 586,864.91, 880,624.44 and 316,987.61 is: 475,658.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,864.91 : 880,624.44 = 316,987.61 : x
  2. Step 2: Convert to fraction form
    586,864.91/880,624.44 = 316,987.61/x
  3. Step 3: Cross multiply
    586,864.91x = 880,624.44 × 316,987.61
  4. Step 4: Simplify right side
    586,864.91x = 279,147,032,140.07
  5. Step 5: Solve for x
    x = 279,147,032,140.07/586,864.91
  6. Step 6: Final answer
    x = 475,658.07

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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.