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Finding the Fourth Proportional to 674,325.79, 928,675.15 and 659,629.15

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Solution

The fourth proportional to 674,325.79, 928,675.15 and 659,629.15 is: 908,435.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,325.79 : 928,675.15 = 659,629.15 : x
  2. Step 2: Convert to fraction form
    674,325.79/928,675.15 = 659,629.15/x
  3. Step 3: Cross multiply
    674,325.79x = 928,675.15 × 659,629.15
  4. Step 4: Simplify right side
    674,325.79x = 612,581,195,849.86
  5. Step 5: Solve for x
    x = 612,581,195,849.86/674,325.79
  6. Step 6: Final answer
    x = 908,435.07

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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.