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Finding the Fourth Proportional to 552,941.78, 762,666.58 and 369,087.66

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Solution

The fourth proportional to 552,941.78, 762,666.58 and 369,087.66 is: 509,078.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,941.78 : 762,666.58 = 369,087.66 : x
  2. Step 2: Convert to fraction form
    552,941.78/762,666.58 = 369,087.66/x
  3. Step 3: Cross multiply
    552,941.78x = 762,666.58 × 369,087.66
  4. Step 4: Simplify right side
    552,941.78x = 281,490,823,372.40
  5. Step 5: Solve for x
    x = 281,490,823,372.40/552,941.78
  6. Step 6: Final answer
    x = 509,078.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.