Home / 1,386,087.71-2,077,916.81-666,070.79

Finding the Fourth Proportional to 1,386,087.71, 2,077,916.81 and 666,070.79

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Solution

The fourth proportional to 1,386,087.71, 2,077,916.81 and 666,070.79 is: 998,522.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,087.71 : 2,077,916.81 = 666,070.79 : x
  2. Step 2: Convert to fraction form
    1,386,087.71/2,077,916.81 = 666,070.79/x
  3. Step 3: Cross multiply
    1,386,087.71x = 2,077,916.81 × 666,070.79
  4. Step 4: Simplify right side
    1,386,087.71x = 1,384,039,677,471.04
  5. Step 5: Solve for x
    x = 1,384,039,677,471.04/1,386,087.71
  6. Step 6: Final answer
    x = 998,522.44

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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.