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Finding the Fourth Proportional to 674,279.52, 930,426.48 and 372,455.52

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Solution

The fourth proportional to 674,279.52, 930,426.48 and 372,455.52 is: 513,944.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,279.52 : 930,426.48 = 372,455.52 : x
  2. Step 2: Convert to fraction form
    674,279.52/930,426.48 = 372,455.52/x
  3. Step 3: Cross multiply
    674,279.52x = 930,426.48 × 372,455.52
  4. Step 4: Simplify right side
    674,279.52x = 346,542,478,430.17
  5. Step 5: Solve for x
    x = 346,542,478,430.17/674,279.52
  6. Step 6: Final answer
    x = 513,944.84

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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.