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Finding the Fourth Proportional to 454,811.70, 637,669.50 and 454,811.70

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Solution

The fourth proportional to 454,811.70, 637,669.50 and 454,811.70 is: 637,669.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,811.70 : 637,669.50 = 454,811.70 : x
  2. Step 2: Convert to fraction form
    454,811.70/637,669.50 = 454,811.70/x
  3. Step 3: Cross multiply
    454,811.70x = 637,669.50 × 454,811.70
  4. Step 4: Simplify right side
    454,811.70x = 290,019,549,333.15
  5. Step 5: Solve for x
    x = 290,019,549,333.15/454,811.70
  6. Step 6: Final answer
    x = 637,669.50

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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.