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Finding the Fourth Proportional to 374,479.99, 516,724.57 and 213,314.56

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Solution

The fourth proportional to 374,479.99, 516,724.57 and 213,314.56 is: 294,341.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,479.99 : 516,724.57 = 213,314.56 : x
  2. Step 2: Convert to fraction form
    374,479.99/516,724.57 = 213,314.56/x
  3. Step 3: Cross multiply
    374,479.99x = 516,724.57 × 213,314.56
  4. Step 4: Simplify right side
    374,479.99x = 110,224,874,290.74
  5. Step 5: Solve for x
    x = 110,224,874,290.74/374,479.99
  6. Step 6: Final answer
    x = 294,341.16

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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.