Home / 1,288,119.83-1,777,535.95-715,123.13

Finding the Fourth Proportional to 1,288,119.83, 1,777,535.95 and 715,123.13

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Solution

The fourth proportional to 1,288,119.83, 1,777,535.95 and 715,123.13 is: 986,831.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,119.83 : 1,777,535.95 = 715,123.13 : x
  2. Step 2: Convert to fraction form
    1,288,119.83/1,777,535.95 = 715,123.13/x
  3. Step 3: Cross multiply
    1,288,119.83x = 1,777,535.95 × 715,123.13
  4. Step 4: Simplify right side
    1,288,119.83x = 1,271,157,061,576.04
  5. Step 5: Solve for x
    x = 1,271,157,061,576.04/1,288,119.83
  6. Step 6: Final answer
    x = 986,831.38

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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.