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Finding the Fourth Proportional to 880,793.60, 1,215,420.93 and 488,337.03

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Solution

The fourth proportional to 880,793.60, 1,215,420.93 and 488,337.03 is: 673,863.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,793.60 : 1,215,420.93 = 488,337.03 : x
  2. Step 2: Convert to fraction form
    880,793.60/1,215,420.93 = 488,337.03/x
  3. Step 3: Cross multiply
    880,793.60x = 1,215,420.93 × 488,337.03
  4. Step 4: Simplify right side
    880,793.60x = 593,535,047,156.04
  5. Step 5: Solve for x
    x = 593,535,047,156.04/880,793.60
  6. Step 6: Final answer
    x = 673,863.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.