Home / 1,638,393.66-2,260,890-903,200.76

Finding the Fourth Proportional to 1,638,393.66, 2,260,890 and 903,200.76

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Solution

The fourth proportional to 1,638,393.66, 2,260,890 and 903,200.76 is: 1,246,365.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,393.66 : 2,260,890 = 903,200.76 : x
  2. Step 2: Convert to fraction form
    1,638,393.66/2,260,890 = 903,200.76/x
  3. Step 3: Cross multiply
    1,638,393.66x = 2,260,890 × 903,200.76
  4. Step 4: Simplify right side
    1,638,393.66x = 2,042,037,566,276.40
  5. Step 5: Solve for x
    x = 2,042,037,566,276.40/1,638,393.66
  6. Step 6: Final answer
    x = 1,246,365.64

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Double scale
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1.5x scale

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.