Home / 1,259,176.40-1,737,612.76-686,204.20

Finding the Fourth Proportional to 1,259,176.40, 1,737,612.76 and 686,204.20

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Solution

The fourth proportional to 1,259,176.40, 1,737,612.76 and 686,204.20 is: 946,934.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,176.40 : 1,737,612.76 = 686,204.20 : x
  2. Step 2: Convert to fraction form
    1,259,176.40/1,737,612.76 = 686,204.20/x
  3. Step 3: Cross multiply
    1,259,176.40x = 1,737,612.76 × 686,204.20
  4. Step 4: Simplify right side
    1,259,176.40x = 1,192,357,173,885.59
  5. Step 5: Solve for x
    x = 1,192,357,173,885.59/1,259,176.40
  6. Step 6: Final answer
    x = 946,934.18

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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.