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Finding the Fourth Proportional to 587,034.70, 880,552.05 and 213,009.10

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Solution

The fourth proportional to 587,034.70, 880,552.05 and 213,009.10 is: 319,513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,034.70 : 880,552.05 = 213,009.10 : x
  2. Step 2: Convert to fraction form
    587,034.70/880,552.05 = 213,009.10/x
  3. Step 3: Cross multiply
    587,034.70x = 880,552.05 × 213,009.10
  4. Step 4: Simplify right side
    587,034.70x = 187,565,599,673.66
  5. Step 5: Solve for x
    x = 187,565,599,673.66/587,034.70
  6. Step 6: Final answer
    x = 319,513.65

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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.