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Finding the Fourth Proportional to 561,570.60, 842,355.90 and 555,665.70

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Solution

The fourth proportional to 561,570.60, 842,355.90 and 555,665.70 is: 833,498.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,570.60 : 842,355.90 = 555,665.70 : x
  2. Step 2: Convert to fraction form
    561,570.60/842,355.90 = 555,665.70/x
  3. Step 3: Cross multiply
    561,570.60x = 842,355.90 × 555,665.70
  4. Step 4: Simplify right side
    561,570.60x = 468,068,280,822.63
  5. Step 5: Solve for x
    x = 468,068,280,822.63/561,570.60
  6. Step 6: Final answer
    x = 833,498.55

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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.