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Finding the Fourth Proportional to 469,390.81, 703,805.01 and 149,404.45

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Solution

The fourth proportional to 469,390.81, 703,805.01 and 149,404.45 is: 224,017.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,390.81 : 703,805.01 = 149,404.45 : x
  2. Step 2: Convert to fraction form
    469,390.81/703,805.01 = 149,404.45/x
  3. Step 3: Cross multiply
    469,390.81x = 703,805.01 × 149,404.45
  4. Step 4: Simplify right side
    469,390.81x = 105,151,600,426.30
  5. Step 5: Solve for x
    x = 105,151,600,426.30/469,390.81
  6. Step 6: Final answer
    x = 224,017.17

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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.