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Finding the Fourth Proportional to 583,422.78, 875,125.48 and 355,785.29

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Solution

The fourth proportional to 583,422.78, 875,125.48 and 355,785.29 is: 533,672.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,422.78 : 875,125.48 = 355,785.29 : x
  2. Step 2: Convert to fraction form
    583,422.78/875,125.48 = 355,785.29/x
  3. Step 3: Cross multiply
    583,422.78x = 875,125.48 × 355,785.29
  4. Step 4: Simplify right side
    583,422.78x = 311,356,769,410.95
  5. Step 5: Solve for x
    x = 311,356,769,410.95/583,422.78
  6. Step 6: Final answer
    x = 533,672.63

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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.