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Finding the Fourth Proportional to 552,587.15, 762,568.97 and 310,869.65

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Solution

The fourth proportional to 552,587.15, 762,568.97 and 310,869.65 is: 428,999.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,587.15 : 762,568.97 = 310,869.65 : x
  2. Step 2: Convert to fraction form
    552,587.15/762,568.97 = 310,869.65/x
  3. Step 3: Cross multiply
    552,587.15x = 762,568.97 × 310,869.65
  4. Step 4: Simplify right side
    552,587.15x = 237,059,548,804.76
  5. Step 5: Solve for x
    x = 237,059,548,804.76/552,587.15
  6. Step 6: Final answer
    x = 428,999.39

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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.