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Finding the Fourth Proportional to 935,758.40, 1,403,637.60 and 817,660.40

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Solution

The fourth proportional to 935,758.40, 1,403,637.60 and 817,660.40 is: 1,226,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,758.40 : 1,403,637.60 = 817,660.40 : x
  2. Step 2: Convert to fraction form
    935,758.40/1,403,637.60 = 817,660.40/x
  3. Step 3: Cross multiply
    935,758.40x = 1,403,637.60 × 817,660.40
  4. Step 4: Simplify right side
    935,758.40x = 1,147,698,881,471.04
  5. Step 5: Solve for x
    x = 1,147,698,881,471.04/935,758.40
  6. Step 6: Final answer
    x = 1,226,490.60

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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.