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Finding the Fourth Proportional to 429,670.79, 592,879.87 and 248,347.79

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Solution

The fourth proportional to 429,670.79, 592,879.87 and 248,347.79 is: 342,681.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,670.79 : 592,879.87 = 248,347.79 : x
  2. Step 2: Convert to fraction form
    429,670.79/592,879.87 = 248,347.79/x
  3. Step 3: Cross multiply
    429,670.79x = 592,879.87 × 248,347.79
  4. Step 4: Simplify right side
    429,670.79x = 147,240,405,449.99
  5. Step 5: Solve for x
    x = 147,240,405,449.99/429,670.79
  6. Step 6: Final answer
    x = 342,681.91

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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.