Home / 992,132.91-1,369,819.59-665,935.17

Finding the Fourth Proportional to 992,132.91, 1,369,819.59 and 665,935.17

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Solution

The fourth proportional to 992,132.91, 1,369,819.59 and 665,935.17 is: 919,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,132.91 : 1,369,819.59 = 665,935.17 : x
  2. Step 2: Convert to fraction form
    992,132.91/1,369,819.59 = 665,935.17/x
  3. Step 3: Cross multiply
    992,132.91x = 1,369,819.59 × 665,935.17
  4. Step 4: Simplify right side
    992,132.91x = 912,211,041,535.98
  5. Step 5: Solve for x
    x = 912,211,041,535.98/992,132.91
  6. Step 6: Final answer
    x = 919,444.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.