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Finding the Fourth Proportional to 560,869.12, 773,995.52 and 306,219.52

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Solution

The fourth proportional to 560,869.12, 773,995.52 and 306,219.52 is: 422,580.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,869.12 : 773,995.52 = 306,219.52 : x
  2. Step 2: Convert to fraction form
    560,869.12/773,995.52 = 306,219.52/x
  3. Step 3: Cross multiply
    560,869.12x = 773,995.52 × 306,219.52
  4. Step 4: Simplify right side
    560,869.12x = 237,012,536,616.55
  5. Step 5: Solve for x
    x = 237,012,536,616.55/560,869.12
  6. Step 6: Final answer
    x = 422,580.83

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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.