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Finding the Fourth Proportional to 478,831.76, 718,465.98 and 179,335.52

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Solution

The fourth proportional to 478,831.76, 718,465.98 and 179,335.52 is: 269,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,831.76 : 718,465.98 = 179,335.52 : x
  2. Step 2: Convert to fraction form
    478,831.76/718,465.98 = 179,335.52/x
  3. Step 3: Cross multiply
    478,831.76x = 718,465.98 × 179,335.52
  4. Step 4: Simplify right side
    478,831.76x = 128,846,470,125.61
  5. Step 5: Solve for x
    x = 128,846,470,125.61/478,831.76
  6. Step 6: Final answer
    x = 269,085.05

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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.