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Finding the Fourth Proportional to 374,164.61, 516,347.63 and 213,019.66

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Solution

The fourth proportional to 374,164.61, 516,347.63 and 213,019.66 is: 293,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,164.61 : 516,347.63 = 213,019.66 : x
  2. Step 2: Convert to fraction form
    374,164.61/516,347.63 = 213,019.66/x
  3. Step 3: Cross multiply
    374,164.61x = 516,347.63 × 213,019.66
  4. Step 4: Simplify right side
    374,164.61x = 109,992,196,584.41
  5. Step 5: Solve for x
    x = 109,992,196,584.41/374,164.61
  6. Step 6: Final answer
    x = 293,967.40

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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.