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Finding the Fourth Proportional to 563,221.76, 844,834.46 and 142,497.63

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Solution

The fourth proportional to 563,221.76, 844,834.46 and 142,497.63 is: 213,746.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,221.76 : 844,834.46 = 142,497.63 : x
  2. Step 2: Convert to fraction form
    563,221.76/844,834.46 = 142,497.63/x
  3. Step 3: Cross multiply
    563,221.76x = 844,834.46 × 142,497.63
  4. Step 4: Simplify right side
    563,221.76x = 120,386,907,579.84
  5. Step 5: Solve for x
    x = 120,386,907,579.84/563,221.76
  6. Step 6: Final answer
    x = 213,746.91

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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.