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Finding the Fourth Proportional to 374,045.12, 516,182.84 and 212,900.17

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Solution

The fourth proportional to 374,045.12, 516,182.84 and 212,900.17 is: 293,802.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,045.12 : 516,182.84 = 212,900.17 : x
  2. Step 2: Convert to fraction form
    374,045.12/516,182.84 = 212,900.17/x
  3. Step 3: Cross multiply
    374,045.12x = 516,182.84 × 212,900.17
  4. Step 4: Simplify right side
    374,045.12x = 109,895,416,447.67
  5. Step 5: Solve for x
    x = 109,895,416,447.67/374,045.12
  6. Step 6: Final answer
    x = 293,802.57

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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.