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Finding the Fourth Proportional to 615,042.30, 922,563.45 and 283,266.30

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Solution

The fourth proportional to 615,042.30, 922,563.45 and 283,266.30 is: 424,899.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,042.30 : 922,563.45 = 283,266.30 : x
  2. Step 2: Convert to fraction form
    615,042.30/922,563.45 = 283,266.30/x
  3. Step 3: Cross multiply
    615,042.30x = 922,563.45 × 283,266.30
  4. Step 4: Simplify right side
    615,042.30x = 261,331,134,996.74
  5. Step 5: Solve for x
    x = 261,331,134,996.74/615,042.30
  6. Step 6: Final answer
    x = 424,899.45

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Double scale
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Similar ratio
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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.