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Finding the Fourth Proportional to 473,990.40, 653,529.60 and 446,515.20

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Solution

The fourth proportional to 473,990.40, 653,529.60 and 446,515.20 is: 615,647.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,990.40 : 653,529.60 = 446,515.20 : x
  2. Step 2: Convert to fraction form
    473,990.40/653,529.60 = 446,515.20/x
  3. Step 3: Cross multiply
    473,990.40x = 653,529.60 × 446,515.20
  4. Step 4: Simplify right side
    473,990.40x = 291,810,900,049.92
  5. Step 5: Solve for x
    x = 291,810,900,049.92/473,990.40
  6. Step 6: Final answer
    x = 615,647.28

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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.