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Finding the Fourth Proportional to 384,017.20, 576,025.80 and 117,775.60

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Solution

The fourth proportional to 384,017.20, 576,025.80 and 117,775.60 is: 176,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,017.20 : 576,025.80 = 117,775.60 : x
  2. Step 2: Convert to fraction form
    384,017.20/576,025.80 = 117,775.60/x
  3. Step 3: Cross multiply
    384,017.20x = 576,025.80 × 117,775.60
  4. Step 4: Simplify right side
    384,017.20x = 67,841,784,210.48
  5. Step 5: Solve for x
    x = 67,841,784,210.48/384,017.20
  6. Step 6: Final answer
    x = 176,663.40

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1.5x scale

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.