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Finding the Fourth Proportional to 382,570.80, 528,049.08 and 269,444.40

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Solution

The fourth proportional to 382,570.80, 528,049.08 and 269,444.40 is: 371,904.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,570.80 : 528,049.08 = 269,444.40 : x
  2. Step 2: Convert to fraction form
    382,570.80/528,049.08 = 269,444.40/x
  3. Step 3: Cross multiply
    382,570.80x = 528,049.08 × 269,444.40
  4. Step 4: Simplify right side
    382,570.80x = 142,279,867,531.15
  5. Step 5: Solve for x
    x = 142,279,867,531.15/382,570.80
  6. Step 6: Final answer
    x = 371,904.67

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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.