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Finding the Fourth Proportional to 368,711.08, 508,831.13 and 207,572.22

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Solution

The fourth proportional to 368,711.08, 508,831.13 and 207,572.22 is: 286,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,711.08 : 508,831.13 = 207,572.22 : x
  2. Step 2: Convert to fraction form
    368,711.08/508,831.13 = 207,572.22/x
  3. Step 3: Cross multiply
    368,711.08x = 508,831.13 × 207,572.22
  4. Step 4: Simplify right side
    368,711.08x = 105,619,207,259.21
  5. Step 5: Solve for x
    x = 105,619,207,259.21/368,711.08
  6. Step 6: Final answer
    x = 286,455.20

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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.