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Finding the Fourth Proportional to 647,200.84, 970,800.48 and 173,886.20

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Solution

The fourth proportional to 647,200.84, 970,800.48 and 173,886.20 is: 260,829.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,200.84 : 970,800.48 = 173,886.20 : x
  2. Step 2: Convert to fraction form
    647,200.84/970,800.48 = 173,886.20/x
  3. Step 3: Cross multiply
    647,200.84x = 970,800.48 × 173,886.20
  4. Step 4: Simplify right side
    647,200.84x = 168,808,806,425.38
  5. Step 5: Solve for x
    x = 168,808,806,425.38/647,200.84
  6. Step 6: Final answer
    x = 260,829.09

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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.