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Finding the Fourth Proportional to 581,662.58, 871,602.67 and 391,419.10

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Solution

The fourth proportional to 581,662.58, 871,602.67 and 391,419.10 is: 586,528.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,662.58 : 871,602.67 = 391,419.10 : x
  2. Step 2: Convert to fraction form
    581,662.58/871,602.67 = 391,419.10/x
  3. Step 3: Cross multiply
    581,662.58x = 871,602.67 × 391,419.10
  4. Step 4: Simplify right side
    581,662.58x = 341,161,932,649.00
  5. Step 5: Solve for x
    x = 341,161,932,649.00/581,662.58
  6. Step 6: Final answer
    x = 586,528.93

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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.