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Finding the Fourth Proportional to 547,803.10, 821,704.65 and 463,822.30

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Solution

The fourth proportional to 547,803.10, 821,704.65 and 463,822.30 is: 695,733.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,803.10 : 821,704.65 = 463,822.30 : x
  2. Step 2: Convert to fraction form
    547,803.10/821,704.65 = 463,822.30/x
  3. Step 3: Cross multiply
    547,803.10x = 821,704.65 × 463,822.30
  4. Step 4: Simplify right side
    547,803.10x = 381,124,940,683.70
  5. Step 5: Solve for x
    x = 381,124,940,683.70/547,803.10
  6. Step 6: Final answer
    x = 695,733.45

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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.