Home / 1,386,088.71-2,077,918.30-666,071.79

Finding the Fourth Proportional to 1,386,088.71, 2,077,918.30 and 666,071.79

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Solution

The fourth proportional to 1,386,088.71, 2,077,918.30 and 666,071.79 is: 998,523.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,088.71 : 2,077,918.30 = 666,071.79 : x
  2. Step 2: Convert to fraction form
    1,386,088.71/2,077,918.30 = 666,071.79/x
  3. Step 3: Cross multiply
    1,386,088.71x = 2,077,918.30 × 666,071.79
  4. Step 4: Simplify right side
    1,386,088.71x = 1,384,042,761,554.76
  5. Step 5: Solve for x
    x = 1,384,042,761,554.76/1,386,088.71
  6. Step 6: Final answer
    x = 998,523.94

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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.