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Finding the Fourth Proportional to 539,150.40, 808,725.60 and 258,523.20

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Solution

The fourth proportional to 539,150.40, 808,725.60 and 258,523.20 is: 387,784.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,150.40 : 808,725.60 = 258,523.20 : x
  2. Step 2: Convert to fraction form
    539,150.40/808,725.60 = 258,523.20/x
  3. Step 3: Cross multiply
    539,150.40x = 808,725.60 × 258,523.20
  4. Step 4: Simplify right side
    539,150.40x = 209,074,330,033.92
  5. Step 5: Solve for x
    x = 209,074,330,033.92/539,150.40
  6. Step 6: Final answer
    x = 387,784.80

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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.