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Finding the Fourth Proportional to 374,463.10, 561,694.65 and 372,130.30

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Solution

The fourth proportional to 374,463.10, 561,694.65 and 372,130.30 is: 558,195.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,463.10 : 561,694.65 = 372,130.30 : x
  2. Step 2: Convert to fraction form
    374,463.10/561,694.65 = 372,130.30/x
  3. Step 3: Cross multiply
    374,463.10x = 561,694.65 × 372,130.30
  4. Step 4: Simplify right side
    374,463.10x = 209,023,598,612.90
  5. Step 5: Solve for x
    x = 209,023,598,612.90/374,463.10
  6. Step 6: Final answer
    x = 558,195.45

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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.