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Finding the Fourth Proportional to 650,942.40, 974,512.80 and 464,318.40

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Solution

The fourth proportional to 650,942.40, 974,512.80 and 464,318.40 is: 695,121.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,942.40 : 974,512.80 = 464,318.40 : x
  2. Step 2: Convert to fraction form
    650,942.40/974,512.80 = 464,318.40/x
  3. Step 3: Cross multiply
    650,942.40x = 974,512.80 × 464,318.40
  4. Step 4: Simplify right side
    650,942.40x = 452,484,224,075.52
  5. Step 5: Solve for x
    x = 452,484,224,075.52/650,942.40
  6. Step 6: Final answer
    x = 695,121.76

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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.