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Finding the Fourth Proportional to 483,438.68, 724,909.02 and 216,970.76

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Solution

The fourth proportional to 483,438.68, 724,909.02 and 216,970.76 is: 325,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,438.68 : 724,909.02 = 216,970.76 : x
  2. Step 2: Convert to fraction form
    483,438.68/724,909.02 = 216,970.76/x
  3. Step 3: Cross multiply
    483,438.68x = 724,909.02 × 216,970.76
  4. Step 4: Simplify right side
    483,438.68x = 157,284,061,000.26
  5. Step 5: Solve for x
    x = 157,284,061,000.26/483,438.68
  6. Step 6: Final answer
    x = 325,344.39

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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.