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Finding the Fourth Proportional to 518,019.24, 714,972.58 and 326,904.04

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Solution

The fourth proportional to 518,019.24, 714,972.58 and 326,904.04 is: 451,194.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,019.24 : 714,972.58 = 326,904.04 : x
  2. Step 2: Convert to fraction form
    518,019.24/714,972.58 = 326,904.04/x
  3. Step 3: Cross multiply
    518,019.24x = 714,972.58 × 326,904.04
  4. Step 4: Simplify right side
    518,019.24x = 233,727,424,891.22
  5. Step 5: Solve for x
    x = 233,727,424,891.22/518,019.24
  6. Step 6: Final answer
    x = 451,194.49

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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.