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Finding the Fourth Proportional to 583,903.84, 805,807.20 and 338,869.76

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Solution

The fourth proportional to 583,903.84, 805,807.20 and 338,869.76 is: 467,651.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,903.84 : 805,807.20 = 338,869.76 : x
  2. Step 2: Convert to fraction form
    583,903.84/805,807.20 = 338,869.76/x
  3. Step 3: Cross multiply
    583,903.84x = 805,807.20 × 338,869.76
  4. Step 4: Simplify right side
    583,903.84x = 273,063,692,470.27
  5. Step 5: Solve for x
    x = 273,063,692,470.27/583,903.84
  6. Step 6: Final answer
    x = 467,651.82

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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.