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Finding the Fourth Proportional to 753,062.40, 1,039,622.40 and 466,444.80

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Solution

The fourth proportional to 753,062.40, 1,039,622.40 and 466,444.80 is: 643,939.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,062.40 : 1,039,622.40 = 466,444.80 : x
  2. Step 2: Convert to fraction form
    753,062.40/1,039,622.40 = 466,444.80/x
  3. Step 3: Cross multiply
    753,062.40x = 1,039,622.40 × 466,444.80
  4. Step 4: Simplify right side
    753,062.40x = 484,926,462,443.52
  5. Step 5: Solve for x
    x = 484,926,462,443.52/753,062.40
  6. Step 6: Final answer
    x = 643,939.28

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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.