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Finding the Fourth Proportional to 555,504.66, 766,643.63 and 313,831.58

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Solution

The fourth proportional to 555,504.66, 766,643.63 and 313,831.58 is: 433,114.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,504.66 : 766,643.63 = 313,831.58 : x
  2. Step 2: Convert to fraction form
    555,504.66/766,643.63 = 313,831.58/x
  3. Step 3: Cross multiply
    555,504.66x = 766,643.63 × 313,831.58
  4. Step 4: Simplify right side
    555,504.66x = 240,596,976,297.46
  5. Step 5: Solve for x
    x = 240,596,976,297.46/555,504.66
  6. Step 6: Final answer
    x = 433,114.24

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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.