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Finding the Fourth Proportional to 984,712.80, 1,477,652.40 and 717,801.60

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Solution

The fourth proportional to 984,712.80, 1,477,652.40 and 717,801.60 is: 1,077,127.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,712.80 : 1,477,652.40 = 717,801.60 : x
  2. Step 2: Convert to fraction form
    984,712.80/1,477,652.40 = 717,801.60/x
  3. Step 3: Cross multiply
    984,712.80x = 1,477,652.40 × 717,801.60
  4. Step 4: Simplify right side
    984,712.80x = 1,060,661,256,963.84
  5. Step 5: Solve for x
    x = 1,060,661,256,963.84/984,712.80
  6. Step 6: Final answer
    x = 1,077,127.52

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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.