Home / 1,538,929.76-2,123,731.41-841,211.52

Finding the Fourth Proportional to 1,538,929.76, 2,123,731.41 and 841,211.52

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Solution

The fourth proportional to 1,538,929.76, 2,123,731.41 and 841,211.52 is: 1,160,876.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,929.76 : 2,123,731.41 = 841,211.52 : x
  2. Step 2: Convert to fraction form
    1,538,929.76/2,123,731.41 = 841,211.52/x
  3. Step 3: Cross multiply
    1,538,929.76x = 2,123,731.41 × 841,211.52
  4. Step 4: Simplify right side
    1,538,929.76x = 1,786,507,312,653.13
  5. Step 5: Solve for x
    x = 1,786,507,312,653.13/1,538,929.76
  6. Step 6: Final answer
    x = 1,160,876.45

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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.