Home / 1,285,346.90-1,928,020.35-655,490.90

Finding the Fourth Proportional to 1,285,346.90, 1,928,020.35 and 655,490.90

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Solution

The fourth proportional to 1,285,346.90, 1,928,020.35 and 655,490.90 is: 983,236.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,346.90 : 1,928,020.35 = 655,490.90 : x
  2. Step 2: Convert to fraction form
    1,285,346.90/1,928,020.35 = 655,490.90/x
  3. Step 3: Cross multiply
    1,285,346.90x = 1,928,020.35 × 655,490.90
  4. Step 4: Simplify right side
    1,285,346.90x = 1,263,799,794,439.82
  5. Step 5: Solve for x
    x = 1,263,799,794,439.82/1,285,346.90
  6. Step 6: Final answer
    x = 983,236.35

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Double scale
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Similar ratio
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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.