Home / 651,052.80-976,579.20-539,078.40

Finding the Fourth Proportional to 651,052.80, 976,579.20 and 539,078.40

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Solution

The fourth proportional to 651,052.80, 976,579.20 and 539,078.40 is: 808,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,052.80 : 976,579.20 = 539,078.40 : x
  2. Step 2: Convert to fraction form
    651,052.80/976,579.20 = 539,078.40/x
  3. Step 3: Cross multiply
    651,052.80x = 976,579.20 × 539,078.40
  4. Step 4: Simplify right side
    651,052.80x = 526,452,752,609.28
  5. Step 5: Solve for x
    x = 526,452,752,609.28/651,052.80
  6. Step 6: Final answer
    x = 808,617.60

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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.