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Finding the Fourth Proportional to 429,430.08, 592,630.56 and 248,136

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Solution

The fourth proportional to 429,430.08, 592,630.56 and 248,136 is: 342,437.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,430.08 : 592,630.56 = 248,136 : x
  2. Step 2: Convert to fraction form
    429,430.08/592,630.56 = 248,136/x
  3. Step 3: Cross multiply
    429,430.08x = 592,630.56 × 248,136
  4. Step 4: Simplify right side
    429,430.08x = 147,052,976,636.16
  5. Step 5: Solve for x
    x = 147,052,976,636.16/429,430.08
  6. Step 6: Final answer
    x = 342,437.53

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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.