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Finding the Fourth Proportional to 633,607.20, 948,661.20 and 493,639.20

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Solution

The fourth proportional to 633,607.20, 948,661.20 and 493,639.20 is: 739,095.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,607.20 : 948,661.20 = 493,639.20 : x
  2. Step 2: Convert to fraction form
    633,607.20/948,661.20 = 493,639.20/x
  3. Step 3: Cross multiply
    633,607.20x = 948,661.20 × 493,639.20
  4. Step 4: Simplify right side
    633,607.20x = 468,296,355,839.04
  5. Step 5: Solve for x
    x = 468,296,355,839.04/633,607.20
  6. Step 6: Final answer
    x = 739,095.70

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1.5x scale

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.