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Finding the Fourth Proportional to 906,807.60, 1,360,729.80 and 346,244.40

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Solution

The fourth proportional to 906,807.60, 1,360,729.80 and 346,244.40 is: 519,564.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,807.60 : 1,360,729.80 = 346,244.40 : x
  2. Step 2: Convert to fraction form
    906,807.60/1,360,729.80 = 346,244.40/x
  3. Step 3: Cross multiply
    906,807.60x = 1,360,729.80 × 346,244.40
  4. Step 4: Simplify right side
    906,807.60x = 471,145,073,163.12
  5. Step 5: Solve for x
    x = 471,145,073,163.12/906,807.60
  6. Step 6: Final answer
    x = 519,564.54

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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.