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Finding the Fourth Proportional to 454,815.45, 637,674.75 and 454,815.45

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Solution

The fourth proportional to 454,815.45, 637,674.75 and 454,815.45 is: 637,674.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,815.45 : 637,674.75 = 454,815.45 : x
  2. Step 2: Convert to fraction form
    454,815.45/637,674.75 = 454,815.45/x
  3. Step 3: Cross multiply
    454,815.45x = 637,674.75 × 454,815.45
  4. Step 4: Simplify right side
    454,815.45x = 290,024,328,374.89
  5. Step 5: Solve for x
    x = 290,024,328,374.89/454,815.45
  6. Step 6: Final answer
    x = 637,674.75

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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.