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Finding the Fourth Proportional to 289,068.40, 433,602.60 and 182,780.20

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Solution

The fourth proportional to 289,068.40, 433,602.60 and 182,780.20 is: 274,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,068.40 : 433,602.60 = 182,780.20 : x
  2. Step 2: Convert to fraction form
    289,068.40/433,602.60 = 182,780.20/x
  3. Step 3: Cross multiply
    289,068.40x = 433,602.60 × 182,780.20
  4. Step 4: Simplify right side
    289,068.40x = 79,253,969,948.52
  5. Step 5: Solve for x
    x = 79,253,969,948.52/289,068.40
  6. Step 6: Final answer
    x = 274,170.30

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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.