Home / 1,278,440.80-1,916,332.80-519,956.80

Finding the Fourth Proportional to 1,278,440.80, 1,916,332.80 and 519,956.80

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Solution

The fourth proportional to 1,278,440.80, 1,916,332.80 and 519,956.80 is: 779,394.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,440.80 : 1,916,332.80 = 519,956.80 : x
  2. Step 2: Convert to fraction form
    1,278,440.80/1,916,332.80 = 519,956.80/x
  3. Step 3: Cross multiply
    1,278,440.80x = 1,916,332.80 × 519,956.80
  4. Step 4: Simplify right side
    1,278,440.80x = 996,410,270,423.04
  5. Step 5: Solve for x
    x = 996,410,270,423.04/1,278,440.80
  6. Step 6: Final answer
    x = 779,394.92

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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.