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Finding the Fourth Proportional to 716,624.66, 989,349.93 and 475,233.12

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Solution

The fourth proportional to 716,624.66, 989,349.93 and 475,233.12 is: 656,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,624.66 : 989,349.93 = 475,233.12 : x
  2. Step 2: Convert to fraction form
    716,624.66/989,349.93 = 475,233.12/x
  3. Step 3: Cross multiply
    716,624.66x = 989,349.93 × 475,233.12
  4. Step 4: Simplify right side
    716,624.66x = 470,171,854,005.68
  5. Step 5: Solve for x
    x = 470,171,854,005.68/716,624.66
  6. Step 6: Final answer
    x = 656,092.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.