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Finding the Fourth Proportional to 374,368.76, 516,653.82 and 211,065.56

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Solution

The fourth proportional to 374,368.76, 516,653.82 and 211,065.56 is: 291,284.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,368.76 : 516,653.82 = 211,065.56 : x
  2. Step 2: Convert to fraction form
    374,368.76/516,653.82 = 211,065.56/x
  3. Step 3: Cross multiply
    374,368.76x = 516,653.82 × 211,065.56
  4. Step 4: Simplify right side
    374,368.76x = 109,047,827,844.44
  5. Step 5: Solve for x
    x = 109,047,827,844.44/374,368.76
  6. Step 6: Final answer
    x = 291,284.53

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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.