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Finding the Fourth Proportional to 614,465.92, 921,065.55 and 235,283.05

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Solution

The fourth proportional to 614,465.92, 921,065.55 and 235,283.05 is: 352,682.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,465.92 : 921,065.55 = 235,283.05 : x
  2. Step 2: Convert to fraction form
    614,465.92/921,065.55 = 235,283.05/x
  3. Step 3: Cross multiply
    614,465.92x = 921,065.55 × 235,283.05
  4. Step 4: Simplify right side
    614,465.92x = 216,711,111,853.93
  5. Step 5: Solve for x
    x = 216,711,111,853.93/614,465.92
  6. Step 6: Final answer
    x = 352,682.07

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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.