Home / 1,258,772.55-1,737,126.05-685,812.57

Finding the Fourth Proportional to 1,258,772.55, 1,737,126.05 and 685,812.57

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Solution

The fourth proportional to 1,258,772.55, 1,737,126.05 and 685,812.57 is: 946,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,772.55 : 1,737,126.05 = 685,812.57 : x
  2. Step 2: Convert to fraction form
    1,258,772.55/1,737,126.05 = 685,812.57/x
  3. Step 3: Cross multiply
    1,258,772.55x = 1,737,126.05 × 685,812.57
  4. Step 4: Simplify right side
    1,258,772.55x = 1,191,342,877,335.39
  5. Step 5: Solve for x
    x = 1,191,342,877,335.39/1,258,772.55
  6. Step 6: Final answer
    x = 946,432.20

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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.