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Finding the Fourth Proportional to 552,932.31, 762,653.53 and 369,078.18

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Solution

The fourth proportional to 552,932.31, 762,653.53 and 369,078.18 is: 509,065.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,932.31 : 762,653.53 = 369,078.18 : x
  2. Step 2: Convert to fraction form
    552,932.31/762,653.53 = 369,078.18/x
  3. Step 3: Cross multiply
    552,932.31x = 762,653.53 × 369,078.18
  4. Step 4: Simplify right side
    552,932.31x = 281,478,777,762.98
  5. Step 5: Solve for x
    x = 281,478,777,762.98/552,932.31
  6. Step 6: Final answer
    x = 509,065.53

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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.