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Finding the Fourth Proportional to 552,183.40, 828,275.10 and 353,117.80

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Solution

The fourth proportional to 552,183.40, 828,275.10 and 353,117.80 is: 529,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,183.40 : 828,275.10 = 353,117.80 : x
  2. Step 2: Convert to fraction form
    552,183.40/828,275.10 = 353,117.80/x
  3. Step 3: Cross multiply
    552,183.40x = 828,275.10 × 353,117.80
  4. Step 4: Simplify right side
    552,183.40x = 292,478,681,106.78
  5. Step 5: Solve for x
    x = 292,478,681,106.78/552,183.40
  6. Step 6: Final answer
    x = 529,676.70

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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.