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Finding the Fourth Proportional to 552,000.70, 828,001.05 and 517,008.70

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Solution

The fourth proportional to 552,000.70, 828,001.05 and 517,008.70 is: 775,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,000.70 : 828,001.05 = 517,008.70 : x
  2. Step 2: Convert to fraction form
    552,000.70/828,001.05 = 517,008.70/x
  3. Step 3: Cross multiply
    552,000.70x = 828,001.05 × 517,008.70
  4. Step 4: Simplify right side
    552,000.70x = 428,083,746,459.14
  5. Step 5: Solve for x
    x = 428,083,746,459.14/552,000.70
  6. Step 6: Final answer
    x = 775,513.05

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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.