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Finding the Fourth Proportional to 712,610.93, 983,401.58 and 385,922.90

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Solution

The fourth proportional to 712,610.93, 983,401.58 and 385,922.90 is: 532,572.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,610.93 : 983,401.58 = 385,922.90 : x
  2. Step 2: Convert to fraction form
    712,610.93/983,401.58 = 385,922.90/x
  3. Step 3: Cross multiply
    712,610.93x = 983,401.58 × 385,922.90
  4. Step 4: Simplify right side
    712,610.93x = 379,517,193,041.49
  5. Step 5: Solve for x
    x = 379,517,193,041.49/712,610.93
  6. Step 6: Final answer
    x = 532,572.79

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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.