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Finding the Fourth Proportional to 577,456.40, 866,184.60 and 156,784.40

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Solution

The fourth proportional to 577,456.40, 866,184.60 and 156,784.40 is: 235,176.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,456.40 : 866,184.60 = 156,784.40 : x
  2. Step 2: Convert to fraction form
    577,456.40/866,184.60 = 156,784.40/x
  3. Step 3: Cross multiply
    577,456.40x = 866,184.60 × 156,784.40
  4. Step 4: Simplify right side
    577,456.40x = 135,804,232,800.24
  5. Step 5: Solve for x
    x = 135,804,232,800.24/577,456.40
  6. Step 6: Final answer
    x = 235,176.60

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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.