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Finding the Fourth Proportional to 614,935.20, 922,402.80 and 216,026.40

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Solution

The fourth proportional to 614,935.20, 922,402.80 and 216,026.40 is: 324,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,935.20 : 922,402.80 = 216,026.40 : x
  2. Step 2: Convert to fraction form
    614,935.20/922,402.80 = 216,026.40/x
  3. Step 3: Cross multiply
    614,935.20x = 922,402.80 × 216,026.40
  4. Step 4: Simplify right side
    614,935.20x = 199,263,356,233.92
  5. Step 5: Solve for x
    x = 199,263,356,233.92/614,935.20
  6. Step 6: Final answer
    x = 324,039.60

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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.