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Finding the Fourth Proportional to 591,330.60, 886,995.90 and 354,940.20

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Solution

The fourth proportional to 591,330.60, 886,995.90 and 354,940.20 is: 532,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,330.60 : 886,995.90 = 354,940.20 : x
  2. Step 2: Convert to fraction form
    591,330.60/886,995.90 = 354,940.20/x
  3. Step 3: Cross multiply
    591,330.60x = 886,995.90 × 354,940.20
  4. Step 4: Simplify right side
    591,330.60x = 314,830,502,145.18
  5. Step 5: Solve for x
    x = 314,830,502,145.18/591,330.60
  6. Step 6: Final answer
    x = 532,410.30

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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.