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Finding the Fourth Proportional to 674,048.11, 930,191.84 and 372,242.11

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Solution

The fourth proportional to 674,048.11, 930,191.84 and 372,242.11 is: 513,697.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,048.11 : 930,191.84 = 372,242.11 : x
  2. Step 2: Convert to fraction form
    674,048.11/930,191.84 = 372,242.11/x
  3. Step 3: Cross multiply
    674,048.11x = 930,191.84 × 372,242.11
  4. Step 4: Simplify right side
    674,048.11x = 346,256,573,226.38
  5. Step 5: Solve for x
    x = 346,256,573,226.38/674,048.11
  6. Step 6: Final answer
    x = 513,697.12

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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.