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Finding the Fourth Proportional to 524,563.10, 786,844.65 and 515,815.10

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Solution

The fourth proportional to 524,563.10, 786,844.65 and 515,815.10 is: 773,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,563.10 : 786,844.65 = 515,815.10 : x
  2. Step 2: Convert to fraction form
    524,563.10/786,844.65 = 515,815.10/x
  3. Step 3: Cross multiply
    524,563.10x = 786,844.65 × 515,815.10
  4. Step 4: Simplify right side
    524,563.10x = 405,866,351,824.22
  5. Step 5: Solve for x
    x = 405,866,351,824.22/524,563.10
  6. Step 6: Final answer
    x = 773,722.65

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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.