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Finding the Fourth Proportional to 454,404.15, 634,921.65 and 454,404.15

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Solution

The fourth proportional to 454,404.15, 634,921.65 and 454,404.15 is: 634,921.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,404.15 : 634,921.65 = 454,404.15 : x
  2. Step 2: Convert to fraction form
    454,404.15/634,921.65 = 454,404.15/x
  3. Step 3: Cross multiply
    454,404.15x = 634,921.65 × 454,404.15
  4. Step 4: Simplify right side
    454,404.15x = 288,511,032,684.85
  5. Step 5: Solve for x
    x = 288,511,032,684.85/454,404.15
  6. Step 6: Final answer
    x = 634,921.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.