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Finding the Fourth Proportional to 536,831.78, 740,842.11 and 291,833.10

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Solution

The fourth proportional to 536,831.78, 740,842.11 and 291,833.10 is: 402,737.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,831.78 : 740,842.11 = 291,833.10 : x
  2. Step 2: Convert to fraction form
    536,831.78/740,842.11 = 291,833.10/x
  3. Step 3: Cross multiply
    536,831.78x = 740,842.11 × 291,833.10
  4. Step 4: Simplify right side
    536,831.78x = 216,202,249,571.84
  5. Step 5: Solve for x
    x = 216,202,249,571.84/536,831.78
  6. Step 6: Final answer
    x = 402,737.43

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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.