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Finding the Fourth Proportional to 540,130.60, 810,195.90 and 352,124.20

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Solution

The fourth proportional to 540,130.60, 810,195.90 and 352,124.20 is: 528,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,130.60 : 810,195.90 = 352,124.20 : x
  2. Step 2: Convert to fraction form
    540,130.60/810,195.90 = 352,124.20/x
  3. Step 3: Cross multiply
    540,130.60x = 810,195.90 × 352,124.20
  4. Step 4: Simplify right side
    540,130.60x = 285,289,583,130.78
  5. Step 5: Solve for x
    x = 285,289,583,130.78/540,130.60
  6. Step 6: Final answer
    x = 528,186.30

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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.