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Finding the Fourth Proportional to 552,661.40, 828,992.10 and 286,333.40

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Solution

The fourth proportional to 552,661.40, 828,992.10 and 286,333.40 is: 429,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,661.40 : 828,992.10 = 286,333.40 : x
  2. Step 2: Convert to fraction form
    552,661.40/828,992.10 = 286,333.40/x
  3. Step 3: Cross multiply
    552,661.40x = 828,992.10 × 286,333.40
  4. Step 4: Simplify right side
    552,661.40x = 237,368,126,566.14
  5. Step 5: Solve for x
    x = 237,368,126,566.14/552,661.40
  6. Step 6: Final answer
    x = 429,500.10

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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.