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Finding the Fourth Proportional to 674,026.48, 930,155.88 and 372,219.76

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Solution

The fourth proportional to 674,026.48, 930,155.88 and 372,219.76 is: 513,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,026.48 : 930,155.88 = 372,219.76 : x
  2. Step 2: Convert to fraction form
    674,026.48/930,155.88 = 372,219.76/x
  3. Step 3: Cross multiply
    674,026.48x = 930,155.88 × 372,219.76
  4. Step 4: Simplify right side
    674,026.48x = 346,222,398,416.19
  5. Step 5: Solve for x
    x = 346,222,398,416.19/674,026.48
  6. Step 6: Final answer
    x = 513,662.90

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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.