Home / 1,275,923.29-1,913,821.32-477,146.11

Finding the Fourth Proportional to 1,275,923.29, 1,913,821.32 and 477,146.11

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Solution

The fourth proportional to 1,275,923.29, 1,913,821.32 and 477,146.11 is: 715,695.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,923.29 : 1,913,821.32 = 477,146.11 : x
  2. Step 2: Convert to fraction form
    1,275,923.29/1,913,821.32 = 477,146.11/x
  3. Step 3: Cross multiply
    1,275,923.29x = 1,913,821.32 × 477,146.11
  4. Step 4: Simplify right side
    1,275,923.29x = 913,172,398,073.07
  5. Step 5: Solve for x
    x = 913,172,398,073.07/1,275,923.29
  6. Step 6: Final answer
    x = 715,695.38

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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.