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Finding the Fourth Proportional to 404,877.74, 607,685.18 and 215,497.13

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Solution

The fourth proportional to 404,877.74, 607,685.18 and 215,497.13 is: 323,441.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,877.74 : 607,685.18 = 215,497.13 : x
  2. Step 2: Convert to fraction form
    404,877.74/607,685.18 = 215,497.13/x
  3. Step 3: Cross multiply
    404,877.74x = 607,685.18 × 215,497.13
  4. Step 4: Simplify right side
    404,877.74x = 130,954,408,117.62
  5. Step 5: Solve for x
    x = 130,954,408,117.62/404,877.74
  6. Step 6: Final answer
    x = 323,441.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.