Home / 828,864.92-1,241,651.28-638,665.40

Finding the Fourth Proportional to 828,864.92, 1,241,651.28 and 638,665.40

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Solution

The fourth proportional to 828,864.92, 1,241,651.28 and 638,665.40 is: 956,729.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,864.92 : 1,241,651.28 = 638,665.40 : x
  2. Step 2: Convert to fraction form
    828,864.92/1,241,651.28 = 638,665.40/x
  3. Step 3: Cross multiply
    828,864.92x = 1,241,651.28 × 638,665.40
  4. Step 4: Simplify right side
    828,864.92x = 792,999,711,401.71
  5. Step 5: Solve for x
    x = 792,999,711,401.71/828,864.92
  6. Step 6: Final answer
    x = 956,729.73

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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.