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Finding the Fourth Proportional to 614,083.68, 920,950.56 and 389,104.56

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Solution

The fourth proportional to 614,083.68, 920,950.56 and 389,104.56 is: 583,545.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,083.68 : 920,950.56 = 389,104.56 : x
  2. Step 2: Convert to fraction form
    614,083.68/920,950.56 = 389,104.56/x
  3. Step 3: Cross multiply
    614,083.68x = 920,950.56 × 389,104.56
  4. Step 4: Simplify right side
    614,083.68x = 358,346,062,430.55
  5. Step 5: Solve for x
    x = 358,346,062,430.55/614,083.68
  6. Step 6: Final answer
    x = 583,545.98

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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.