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Finding the Fourth Proportional to 634,173.12, 875,158.65 and 347,687.10

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Solution

The fourth proportional to 634,173.12, 875,158.65 and 347,687.10 is: 479,808.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,173.12 : 875,158.65 = 347,687.10 : x
  2. Step 2: Convert to fraction form
    634,173.12/875,158.65 = 347,687.10/x
  3. Step 3: Cross multiply
    634,173.12x = 875,158.65 × 347,687.10
  4. Step 4: Simplify right side
    634,173.12x = 304,281,373,058.42
  5. Step 5: Solve for x
    x = 304,281,373,058.42/634,173.12
  6. Step 6: Final answer
    x = 479,808.06

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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.