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Finding the Fourth Proportional to 619,547.10, 929,101.95 and 220,200.90

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Solution

The fourth proportional to 619,547.10, 929,101.95 and 220,200.90 is: 330,223.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,547.10 : 929,101.95 = 220,200.90 : x
  2. Step 2: Convert to fraction form
    619,547.10/929,101.95 = 220,200.90/x
  3. Step 3: Cross multiply
    619,547.10x = 929,101.95 × 220,200.90
  4. Step 4: Simplify right side
    619,547.10x = 204,589,085,581.76
  5. Step 5: Solve for x
    x = 204,589,085,581.76/619,547.10
  6. Step 6: Final answer
    x = 330,223.62

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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.