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Finding the Fourth Proportional to 535,067.20, 802,600.80 and 477,006.40

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Solution

The fourth proportional to 535,067.20, 802,600.80 and 477,006.40 is: 715,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,067.20 : 802,600.80 = 477,006.40 : x
  2. Step 2: Convert to fraction form
    535,067.20/802,600.80 = 477,006.40/x
  3. Step 3: Cross multiply
    535,067.20x = 802,600.80 × 477,006.40
  4. Step 4: Simplify right side
    535,067.20x = 382,845,718,245.12
  5. Step 5: Solve for x
    x = 382,845,718,245.12/535,067.20
  6. Step 6: Final answer
    x = 715,509.60

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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.