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Finding the Fourth Proportional to 543,298.70, 814,948.05 and 144,001.10

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Solution

The fourth proportional to 543,298.70, 814,948.05 and 144,001.10 is: 216,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,298.70 : 814,948.05 = 144,001.10 : x
  2. Step 2: Convert to fraction form
    543,298.70/814,948.05 = 144,001.10/x
  3. Step 3: Cross multiply
    543,298.70x = 814,948.05 × 144,001.10
  4. Step 4: Simplify right side
    543,298.70x = 117,353,415,642.86
  5. Step 5: Solve for x
    x = 117,353,415,642.86/543,298.70
  6. Step 6: Final answer
    x = 216,001.65

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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.