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Finding the Fourth Proportional to 358,753.53, 538,130.98 and 336,831.59

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Solution

The fourth proportional to 358,753.53, 538,130.98 and 336,831.59 is: 505,248.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,753.53 : 538,130.98 = 336,831.59 : x
  2. Step 2: Convert to fraction form
    358,753.53/538,130.98 = 336,831.59/x
  3. Step 3: Cross multiply
    358,753.53x = 538,130.98 × 336,831.59
  4. Step 4: Simplify right side
    358,753.53x = 181,259,510,466.36
  5. Step 5: Solve for x
    x = 181,259,510,466.36/358,753.53
  6. Step 6: Final answer
    x = 505,248.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.