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Finding the Fourth Proportional to 1,056,177.60, 1,584,266.40 and 964,939.20

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Solution

The fourth proportional to 1,056,177.60, 1,584,266.40 and 964,939.20 is: 1,447,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056,177.60 : 1,584,266.40 = 964,939.20 : x
  2. Step 2: Convert to fraction form
    1,056,177.60/1,584,266.40 = 964,939.20/x
  3. Step 3: Cross multiply
    1,056,177.60x = 1,584,266.40 × 964,939.20
  4. Step 4: Simplify right side
    1,056,177.60x = 1,528,720,752,602.88
  5. Step 5: Solve for x
    x = 1,528,720,752,602.88/1,056,177.60
  6. Step 6: Final answer
    x = 1,447,408.80

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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.