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Finding the Fourth Proportional to 886,884.54, 1,223,900.74 and 484,476.54

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Solution

The fourth proportional to 886,884.54, 1,223,900.74 and 484,476.54 is: 668,577.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,884.54 : 1,223,900.74 = 484,476.54 : x
  2. Step 2: Convert to fraction form
    886,884.54/1,223,900.74 = 484,476.54/x
  3. Step 3: Cross multiply
    886,884.54x = 1,223,900.74 × 484,476.54
  4. Step 4: Simplify right side
    886,884.54x = 592,951,195,818.64
  5. Step 5: Solve for x
    x = 592,951,195,818.64/886,884.54
  6. Step 6: Final answer
    x = 668,577.67

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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.