Home / 979,609.14-1,469,981.25-410,940

Finding the Fourth Proportional to 979,609.14, 1,469,981.25 and 410,940

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Solution

The fourth proportional to 979,609.14, 1,469,981.25 and 410,940 is: 616,648.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,609.14 : 1,469,981.25 = 410,940 : x
  2. Step 2: Convert to fraction form
    979,609.14/1,469,981.25 = 410,940/x
  3. Step 3: Cross multiply
    979,609.14x = 1,469,981.25 × 410,940
  4. Step 4: Simplify right side
    979,609.14x = 604,074,094,875
  5. Step 5: Solve for x
    x = 604,074,094,875/979,609.14
  6. Step 6: Final answer
    x = 616,648.08

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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.