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Finding the Fourth Proportional to 942,766.72, 1,302,330 and 907,769.20

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Solution

The fourth proportional to 942,766.72, 1,302,330 and 907,769.20 is: 1,253,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,766.72 : 1,302,330 = 907,769.20 : x
  2. Step 2: Convert to fraction form
    942,766.72/1,302,330 = 907,769.20/x
  3. Step 3: Cross multiply
    942,766.72x = 1,302,330 × 907,769.20
  4. Step 4: Simplify right side
    942,766.72x = 1,182,215,062,236
  5. Step 5: Solve for x
    x = 1,182,215,062,236/942,766.72
  6. Step 6: Final answer
    x = 1,253,984.72

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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.