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Finding the Fourth Proportional to 583,458.40, 875,079.60 and 162,647.20

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Solution

The fourth proportional to 583,458.40, 875,079.60 and 162,647.20 is: 243,940.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,458.40 : 875,079.60 = 162,647.20 : x
  2. Step 2: Convert to fraction form
    583,458.40/875,079.60 = 162,647.20/x
  3. Step 3: Cross multiply
    583,458.40x = 875,079.60 × 162,647.20
  4. Step 4: Simplify right side
    583,458.40x = 142,329,246,717.12
  5. Step 5: Solve for x
    x = 142,329,246,717.12/583,458.40
  6. Step 6: Final answer
    x = 243,940.69

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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.