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Finding the Fourth Proportional to 561,746.80, 842,620.20 and 532,878.40

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Solution

The fourth proportional to 561,746.80, 842,620.20 and 532,878.40 is: 799,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,746.80 : 842,620.20 = 532,878.40 : x
  2. Step 2: Convert to fraction form
    561,746.80/842,620.20 = 532,878.40/x
  3. Step 3: Cross multiply
    561,746.80x = 842,620.20 × 532,878.40
  4. Step 4: Simplify right side
    561,746.80x = 449,014,103,983.68
  5. Step 5: Solve for x
    x = 449,014,103,983.68/561,746.80
  6. Step 6: Final answer
    x = 799,317.60

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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.