Home / 808,538.20-1,212,807.30-572,342.20

Finding the Fourth Proportional to 808,538.20, 1,212,807.30 and 572,342.20

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Solution

The fourth proportional to 808,538.20, 1,212,807.30 and 572,342.20 is: 858,513.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,538.20 : 1,212,807.30 = 572,342.20 : x
  2. Step 2: Convert to fraction form
    808,538.20/1,212,807.30 = 572,342.20/x
  3. Step 3: Cross multiply
    808,538.20x = 1,212,807.30 × 572,342.20
  4. Step 4: Simplify right side
    808,538.20x = 694,140,798,258.06
  5. Step 5: Solve for x
    x = 694,140,798,258.06/808,538.20
  6. Step 6: Final answer
    x = 858,513.30

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Double scale
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Similar ratio
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1.5x scale

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.