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Finding the Fourth Proportional to 429,557.78, 592,754.96 and 248,281.40

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Solution

The fourth proportional to 429,557.78, 592,754.96 and 248,281.40 is: 342,608.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,557.78 : 592,754.96 = 248,281.40 : x
  2. Step 2: Convert to fraction form
    429,557.78/592,754.96 = 248,281.40/x
  3. Step 3: Cross multiply
    429,557.78x = 592,754.96 × 248,281.40
  4. Step 4: Simplify right side
    429,557.78x = 147,170,033,428.34
  5. Step 5: Solve for x
    x = 147,170,033,428.34/429,557.78
  6. Step 6: Final answer
    x = 342,608.23

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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.