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Finding the Fourth Proportional to 614,455.31, 921,483.65 and 235,355.87

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Solution

The fourth proportional to 614,455.31, 921,483.65 and 235,355.87 is: 352,957.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,455.31 : 921,483.65 = 235,355.87 : x
  2. Step 2: Convert to fraction form
    614,455.31/921,483.65 = 235,355.87/x
  3. Step 3: Cross multiply
    614,455.31x = 921,483.65 × 235,355.87
  4. Step 4: Simplify right side
    614,455.31x = 216,876,580,352.33
  5. Step 5: Solve for x
    x = 216,876,580,352.33/614,455.31
  6. Step 6: Final answer
    x = 352,957.45

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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.