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Finding the Fourth Proportional to 586,865.12, 880,624.76 and 316,987.81

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Solution

The fourth proportional to 586,865.12, 880,624.76 and 316,987.81 is: 475,658.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,865.12 : 880,624.76 = 316,987.81 : x
  2. Step 2: Convert to fraction form
    586,865.12/880,624.76 = 316,987.81/x
  3. Step 3: Cross multiply
    586,865.12x = 880,624.76 × 316,987.81
  4. Step 4: Simplify right side
    586,865.12x = 279,147,314,104.18
  5. Step 5: Solve for x
    x = 279,147,314,104.18/586,865.12
  6. Step 6: Final answer
    x = 475,658.38

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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.