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Finding the Fourth Proportional to 448,491.90, 619,068.78 and 267,260.67

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Solution

The fourth proportional to 448,491.90, 619,068.78 and 267,260.67 is: 368,909.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,491.90 : 619,068.78 = 267,260.67 : x
  2. Step 2: Convert to fraction form
    448,491.90/619,068.78 = 267,260.67/x
  3. Step 3: Cross multiply
    448,491.90x = 619,068.78 × 267,260.67
  4. Step 4: Simplify right side
    448,491.90x = 165,452,736,918.88
  5. Step 5: Solve for x
    x = 165,452,736,918.88/448,491.90
  6. Step 6: Final answer
    x = 368,909.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.