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Finding the Fourth Proportional to 374,568.47, 516,955.13 and 211,258.53

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Solution

The fourth proportional to 374,568.47, 516,955.13 and 211,258.53 is: 291,565.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,568.47 : 516,955.13 = 211,258.53 : x
  2. Step 2: Convert to fraction form
    374,568.47/516,955.13 = 211,258.53/x
  3. Step 3: Cross multiply
    374,568.47x = 516,955.13 × 211,258.53
  4. Step 4: Simplify right side
    374,568.47x = 109,211,180,575.69
  5. Step 5: Solve for x
    x = 109,211,180,575.69/374,568.47
  6. Step 6: Final answer
    x = 291,565.33

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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.