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Finding the Fourth Proportional to 374,188.76, 516,368.94 and 213,066.80

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Solution

The fourth proportional to 374,188.76, 516,368.94 and 213,066.80 is: 294,025.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,188.76 : 516,368.94 = 213,066.80 : x
  2. Step 2: Convert to fraction form
    374,188.76/516,368.94 = 213,066.80/x
  3. Step 3: Cross multiply
    374,188.76x = 516,368.94 × 213,066.80
  4. Step 4: Simplify right side
    374,188.76x = 110,021,077,665.19
  5. Step 5: Solve for x
    x = 110,021,077,665.19/374,188.76
  6. Step 6: Final answer
    x = 294,025.61

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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.