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Finding the Fourth Proportional to 365,028.80, 547,543.20 and 98,830.40

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Solution

The fourth proportional to 365,028.80, 547,543.20 and 98,830.40 is: 148,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,028.80 : 547,543.20 = 98,830.40 : x
  2. Step 2: Convert to fraction form
    365,028.80/547,543.20 = 98,830.40/x
  3. Step 3: Cross multiply
    365,028.80x = 547,543.20 × 98,830.40
  4. Step 4: Simplify right side
    365,028.80x = 54,113,913,473.28
  5. Step 5: Solve for x
    x = 54,113,913,473.28/365,028.80
  6. Step 6: Final answer
    x = 148,245.60

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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.