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Finding the Fourth Proportional to 583,217.44, 874,826.17 and 139,985.44

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Solution

The fourth proportional to 583,217.44, 874,826.17 and 139,985.44 is: 209,978.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,217.44 : 874,826.17 = 139,985.44 : x
  2. Step 2: Convert to fraction form
    583,217.44/874,826.17 = 139,985.44/x
  3. Step 3: Cross multiply
    583,217.44x = 874,826.17 × 139,985.44
  4. Step 4: Simplify right side
    583,217.44x = 122,462,923,793.94
  5. Step 5: Solve for x
    x = 122,462,923,793.94/583,217.44
  6. Step 6: Final answer
    x = 209,978.16

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Half scale
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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.