Home / 1,838,390.30-2,754,389.71-1,290,119.95

Finding the Fourth Proportional to 1,838,390.30, 2,754,389.71 and 1,290,119.95

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Solution

The fourth proportional to 1,838,390.30, 2,754,389.71 and 1,290,119.95 is: 1,932,937.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838,390.30 : 2,754,389.71 = 1,290,119.95 : x
  2. Step 2: Convert to fraction form
    1,838,390.30/2,754,389.71 = 1,290,119.95/x
  3. Step 3: Cross multiply
    1,838,390.30x = 2,754,389.71 × 1,290,119.95
  4. Step 4: Simplify right side
    1,838,390.30x = 3,553,493,114,945.71
  5. Step 5: Solve for x
    x = 3,553,493,114,945.71/1,838,390.30
  6. Step 6: Final answer
    x = 1,932,937.26

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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.