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Finding the Fourth Proportional to 536,616.90, 804,925.35 and 287,784.90

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Solution

The fourth proportional to 536,616.90, 804,925.35 and 287,784.90 is: 431,677.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,616.90 : 804,925.35 = 287,784.90 : x
  2. Step 2: Convert to fraction form
    536,616.90/804,925.35 = 287,784.90/x
  3. Step 3: Cross multiply
    536,616.90x = 804,925.35 × 287,784.90
  4. Step 4: Simplify right side
    536,616.90x = 231,645,361,357.22
  5. Step 5: Solve for x
    x = 231,645,361,357.22/536,616.90
  6. Step 6: Final answer
    x = 431,677.35

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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.