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Finding the Fourth Proportional to 589,049.55, 812,876.72 and 347,342.31

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Solution

The fourth proportional to 589,049.55, 812,876.72 and 347,342.31 is: 479,325.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,049.55 : 812,876.72 = 347,342.31 : x
  2. Step 2: Convert to fraction form
    589,049.55/812,876.72 = 347,342.31/x
  3. Step 3: Cross multiply
    589,049.55x = 812,876.72 × 347,342.31
  4. Step 4: Simplify right side
    589,049.55x = 282,346,475,933.31
  5. Step 5: Solve for x
    x = 282,346,475,933.31/589,049.55
  6. Step 6: Final answer
    x = 479,325.51

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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.