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Finding the Fourth Proportional to 628,003.36, 866,205.36 and 413,074.72

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Solution

The fourth proportional to 628,003.36, 866,205.36 and 413,074.72 is: 569,754.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,003.36 : 866,205.36 = 413,074.72 : x
  2. Step 2: Convert to fraction form
    628,003.36/866,205.36 = 413,074.72/x
  3. Step 3: Cross multiply
    628,003.36x = 866,205.36 × 413,074.72
  4. Step 4: Simplify right side
    628,003.36x = 357,807,536,544.50
  5. Step 5: Solve for x
    x = 357,807,536,544.50/628,003.36
  6. Step 6: Final answer
    x = 569,754.18

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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.