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Finding the Fourth Proportional to 497,309.40, 745,964.10 and 123,332.40

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Solution

The fourth proportional to 497,309.40, 745,964.10 and 123,332.40 is: 184,998.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,309.40 : 745,964.10 = 123,332.40 : x
  2. Step 2: Convert to fraction form
    497,309.40/745,964.10 = 123,332.40/x
  3. Step 3: Cross multiply
    497,309.40x = 745,964.10 × 123,332.40
  4. Step 4: Simplify right side
    497,309.40x = 92,001,542,766.84
  5. Step 5: Solve for x
    x = 92,001,542,766.84/497,309.40
  6. Step 6: Final answer
    x = 184,998.60

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.