Home / 1,965,988.31-2,711,666.29-1,312,284.74

Finding the Fourth Proportional to 1,965,988.31, 2,711,666.29 and 1,312,284.74

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Solution

The fourth proportional to 1,965,988.31, 2,711,666.29 and 1,312,284.74 is: 1,810,020.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,988.31 : 2,711,666.29 = 1,312,284.74 : x
  2. Step 2: Convert to fraction form
    1,965,988.31/2,711,666.29 = 1,312,284.74/x
  3. Step 3: Cross multiply
    1,965,988.31x = 2,711,666.29 × 1,312,284.74
  4. Step 4: Simplify right side
    1,965,988.31x = 3,558,478,292,339.41
  5. Step 5: Solve for x
    x = 3,558,478,292,339.41/1,965,988.31
  6. Step 6: Final answer
    x = 1,810,020.07

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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.