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Finding the Fourth Proportional to 579,618.30, 869,427.45 and 533,999.10

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Solution

The fourth proportional to 579,618.30, 869,427.45 and 533,999.10 is: 800,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,618.30 : 869,427.45 = 533,999.10 : x
  2. Step 2: Convert to fraction form
    579,618.30/869,427.45 = 533,999.10/x
  3. Step 3: Cross multiply
    579,618.30x = 869,427.45 × 533,999.10
  4. Step 4: Simplify right side
    579,618.30x = 464,273,475,815.30
  5. Step 5: Solve for x
    x = 464,273,475,815.30/579,618.30
  6. Step 6: Final answer
    x = 800,998.65

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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.