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Finding the Fourth Proportional to 633,624.20, 948,686.70 and 493,656.20

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Solution

The fourth proportional to 633,624.20, 948,686.70 and 493,656.20 is: 739,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,624.20 : 948,686.70 = 493,656.20 : x
  2. Step 2: Convert to fraction form
    633,624.20/948,686.70 = 493,656.20/x
  3. Step 3: Cross multiply
    633,624.20x = 948,686.70 × 493,656.20
  4. Step 4: Simplify right side
    633,624.20x = 468,325,071,312.54
  5. Step 5: Solve for x
    x = 468,325,071,312.54/633,624.20
  6. Step 6: Final answer
    x = 739,121.19

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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.