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Finding the Fourth Proportional to 445,063.16, 614,282.28 and 290,207.76

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Solution

The fourth proportional to 445,063.16, 614,282.28 and 290,207.76 is: 400,548.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,063.16 : 614,282.28 = 290,207.76 : x
  2. Step 2: Convert to fraction form
    445,063.16/614,282.28 = 290,207.76/x
  3. Step 3: Cross multiply
    445,063.16x = 614,282.28 × 290,207.76
  4. Step 4: Simplify right side
    445,063.16x = 178,269,486,182.41
  5. Step 5: Solve for x
    x = 178,269,486,182.41/445,063.16
  6. Step 6: Final answer
    x = 400,548.74

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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.