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Finding the Fourth Proportional to 374,463.60, 561,695.40 and 372,130.80

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Solution

The fourth proportional to 374,463.60, 561,695.40 and 372,130.80 is: 558,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,463.60 : 561,695.40 = 372,130.80 : x
  2. Step 2: Convert to fraction form
    374,463.60/561,695.40 = 372,130.80/x
  3. Step 3: Cross multiply
    374,463.60x = 561,695.40 × 372,130.80
  4. Step 4: Simplify right side
    374,463.60x = 209,024,158,558.32
  5. Step 5: Solve for x
    x = 209,024,158,558.32/374,463.60
  6. Step 6: Final answer
    x = 558,196.20

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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.