Home / 1,397,825.95-1,928,211.63-838,877.45

Finding the Fourth Proportional to 1,397,825.95, 1,928,211.63 and 838,877.45

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Solution

The fourth proportional to 1,397,825.95, 1,928,211.63 and 838,877.45 is: 1,157,177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,825.95 : 1,928,211.63 = 838,877.45 : x
  2. Step 2: Convert to fraction form
    1,397,825.95/1,928,211.63 = 838,877.45/x
  3. Step 3: Cross multiply
    1,397,825.95x = 1,928,211.63 × 838,877.45
  4. Step 4: Simplify right side
    1,397,825.95x = 1,617,533,255,234.74
  5. Step 5: Solve for x
    x = 1,617,533,255,234.74/1,397,825.95
  6. Step 6: Final answer
    x = 1,157,177.87

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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.