Home / 529,867.60-794,801.40-521,119.60

Finding the Fourth Proportional to 529,867.60, 794,801.40 and 521,119.60

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Solution

The fourth proportional to 529,867.60, 794,801.40 and 521,119.60 is: 781,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,867.60 : 794,801.40 = 521,119.60 : x
  2. Step 2: Convert to fraction form
    529,867.60/794,801.40 = 521,119.60/x
  3. Step 3: Cross multiply
    529,867.60x = 794,801.40 × 521,119.60
  4. Step 4: Simplify right side
    529,867.60x = 414,186,587,647.44
  5. Step 5: Solve for x
    x = 414,186,587,647.44/529,867.60
  6. Step 6: Final answer
    x = 781,679.40

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Half scale
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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.