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Finding the Fourth Proportional to 591,323.70, 886,985.55 and 217,298.10

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Solution

The fourth proportional to 591,323.70, 886,985.55 and 217,298.10 is: 325,947.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,323.70 : 886,985.55 = 217,298.10 : x
  2. Step 2: Convert to fraction form
    591,323.70/886,985.55 = 217,298.10/x
  3. Step 3: Cross multiply
    591,323.70x = 886,985.55 × 217,298.10
  4. Step 4: Simplify right side
    591,323.70x = 192,740,274,742.46
  5. Step 5: Solve for x
    x = 192,740,274,742.46/591,323.70
  6. Step 6: Final answer
    x = 325,947.15

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Half scale
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Double scale
Find fourth proportional to 591,324.70, 886,987.05 and 217,299.10
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.