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Finding the Fourth Proportional to 577,443.06, 866,155.04 and 172,636.20

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Solution

The fourth proportional to 577,443.06, 866,155.04 and 172,636.20 is: 258,951.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,443.06 : 866,155.04 = 172,636.20 : x
  2. Step 2: Convert to fraction form
    577,443.06/866,155.04 = 172,636.20/x
  3. Step 3: Cross multiply
    577,443.06x = 866,155.04 × 172,636.20
  4. Step 4: Simplify right side
    577,443.06x = 149,529,713,853.27
  5. Step 5: Solve for x
    x = 149,529,713,853.27/577,443.06
  6. Step 6: Final answer
    x = 258,951.44

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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.