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Finding the Fourth Proportional to 532,091.20, 798,136.80 and 310,907.20

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Solution

The fourth proportional to 532,091.20, 798,136.80 and 310,907.20 is: 466,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,091.20 : 798,136.80 = 310,907.20 : x
  2. Step 2: Convert to fraction form
    532,091.20/798,136.80 = 310,907.20/x
  3. Step 3: Cross multiply
    532,091.20x = 798,136.80 × 310,907.20
  4. Step 4: Simplify right side
    532,091.20x = 248,146,477,704.96
  5. Step 5: Solve for x
    x = 248,146,477,704.96/532,091.20
  6. Step 6: Final answer
    x = 466,360.80

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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.