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Finding the Fourth Proportional to 581,660.58, 871,599.67 and 391,417.10

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Solution

The fourth proportional to 581,660.58, 871,599.67 and 391,417.10 is: 586,525.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,660.58 : 871,599.67 = 391,417.10 : x
  2. Step 2: Convert to fraction form
    581,660.58/871,599.67 = 391,417.10/x
  3. Step 3: Cross multiply
    581,660.58x = 871,599.67 × 391,417.10
  4. Step 4: Simplify right side
    581,660.58x = 341,159,015,192.36
  5. Step 5: Solve for x
    x = 341,159,015,192.36/581,660.58
  6. Step 6: Final answer
    x = 586,525.93

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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.