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Finding the Fourth Proportional to 723,901.59, 999,104.11 and 401,715.18

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Solution

The fourth proportional to 723,901.59, 999,104.11 and 401,715.18 is: 554,433.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,901.59 : 999,104.11 = 401,715.18 : x
  2. Step 2: Convert to fraction form
    723,901.59/999,104.11 = 401,715.18/x
  3. Step 3: Cross multiply
    723,901.59x = 999,104.11 × 401,715.18
  4. Step 4: Simplify right side
    723,901.59x = 401,355,287,387.39
  5. Step 5: Solve for x
    x = 401,355,287,387.39/723,901.59
  6. Step 6: Final answer
    x = 554,433.49

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Double scale
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Similar ratio
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1.5x scale

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.