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Finding the Fourth Proportional to 518,552.54, 715,348.15 and 346,512.74

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Solution

The fourth proportional to 518,552.54, 715,348.15 and 346,512.74 is: 478,017.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,552.54 : 715,348.15 = 346,512.74 : x
  2. Step 2: Convert to fraction form
    518,552.54/715,348.15 = 346,512.74/x
  3. Step 3: Cross multiply
    518,552.54x = 715,348.15 × 346,512.74
  4. Step 4: Simplify right side
    518,552.54x = 247,877,243,067.41
  5. Step 5: Solve for x
    x = 247,877,243,067.41/518,552.54
  6. Step 6: Final answer
    x = 478,017.61

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1.5x scale

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.