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Finding the Fourth Proportional to 581,700.40, 873,206.70 and 449,168.20

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Solution

The fourth proportional to 581,700.40, 873,206.70 and 449,168.20 is: 674,258.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,700.40 : 873,206.70 = 449,168.20 : x
  2. Step 2: Convert to fraction form
    581,700.40/873,206.70 = 449,168.20/x
  3. Step 3: Cross multiply
    581,700.40x = 873,206.70 × 449,168.20
  4. Step 4: Simplify right side
    581,700.40x = 392,216,681,666.94
  5. Step 5: Solve for x
    x = 392,216,681,666.94/581,700.40
  6. Step 6: Final answer
    x = 674,258.92

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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.