Home / 649,577.16-896,167.62-394,835.40

Finding the Fourth Proportional to 649,577.16, 896,167.62 and 394,835.40

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Solution

The fourth proportional to 649,577.16, 896,167.62 and 394,835.40 is: 544,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,577.16 : 896,167.62 = 394,835.40 : x
  2. Step 2: Convert to fraction form
    649,577.16/896,167.62 = 394,835.40/x
  3. Step 3: Cross multiply
    649,577.16x = 896,167.62 × 394,835.40
  4. Step 4: Simplify right side
    649,577.16x = 353,838,700,709.75
  5. Step 5: Solve for x
    x = 353,838,700,709.75/649,577.16
  6. Step 6: Final answer
    x = 544,721.59

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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.