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Finding the Fourth Proportional to 674,031.24, 930,162.96 and 372,225.24

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Solution

The fourth proportional to 674,031.24, 930,162.96 and 372,225.24 is: 513,670.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,031.24 : 930,162.96 = 372,225.24 : x
  2. Step 2: Convert to fraction form
    674,031.24/930,162.96 = 372,225.24/x
  3. Step 3: Cross multiply
    674,031.24x = 930,162.96 × 372,225.24
  4. Step 4: Simplify right side
    674,031.24x = 346,230,131,025.11
  5. Step 5: Solve for x
    x = 346,230,131,025.11/674,031.24
  6. Step 6: Final answer
    x = 513,670.75

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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.