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Finding the Fourth Proportional to 552,442.20, 828,663.30 and 286,284.30

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Solution

The fourth proportional to 552,442.20, 828,663.30 and 286,284.30 is: 429,426.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,442.20 : 828,663.30 = 286,284.30 : x
  2. Step 2: Convert to fraction form
    552,442.20/828,663.30 = 286,284.30/x
  3. Step 3: Cross multiply
    552,442.20x = 828,663.30 × 286,284.30
  4. Step 4: Simplify right side
    552,442.20x = 237,233,292,776.19
  5. Step 5: Solve for x
    x = 237,233,292,776.19/552,442.20
  6. Step 6: Final answer
    x = 429,426.45

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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.