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Finding the Fourth Proportional to 536,639.35, 804,959.03 and 256,703.35

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Solution

The fourth proportional to 536,639.35, 804,959.03 and 256,703.35 is: 385,055.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,639.35 : 804,959.03 = 256,703.35 : x
  2. Step 2: Convert to fraction form
    536,639.35/804,959.03 = 256,703.35/x
  3. Step 3: Cross multiply
    536,639.35x = 804,959.03 × 256,703.35
  4. Step 4: Simplify right side
    536,639.35x = 206,635,679,613.75
  5. Step 5: Solve for x
    x = 206,635,679,613.75/536,639.35
  6. Step 6: Final answer
    x = 385,055.03

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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.