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Finding the Fourth Proportional to 386,547.26, 533,493.54 and 235,731.74

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Solution

The fourth proportional to 386,547.26, 533,493.54 and 235,731.74 is: 325,345.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,547.26 : 533,493.54 = 235,731.74 : x
  2. Step 2: Convert to fraction form
    386,547.26/533,493.54 = 235,731.74/x
  3. Step 3: Cross multiply
    386,547.26x = 533,493.54 × 235,731.74
  4. Step 4: Simplify right side
    386,547.26x = 125,761,360,462.96
  5. Step 5: Solve for x
    x = 125,761,360,462.96/386,547.26
  6. Step 6: Final answer
    x = 325,345.37

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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.