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Finding the Fourth Proportional to 644,018.20, 966,027.30 and 170,751.40

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Solution

The fourth proportional to 644,018.20, 966,027.30 and 170,751.40 is: 256,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,018.20 : 966,027.30 = 170,751.40 : x
  2. Step 2: Convert to fraction form
    644,018.20/966,027.30 = 170,751.40/x
  3. Step 3: Cross multiply
    644,018.20x = 966,027.30 × 170,751.40
  4. Step 4: Simplify right side
    644,018.20x = 164,950,513,913.22
  5. Step 5: Solve for x
    x = 164,950,513,913.22/644,018.20
  6. Step 6: Final answer
    x = 256,127.10

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Double scale
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Similar ratio
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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.