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Finding the Fourth Proportional to 448,065.72, 618,330.34 and 246,861.72

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Solution

The fourth proportional to 448,065.72, 618,330.34 and 246,861.72 is: 340,668.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,065.72 : 618,330.34 = 246,861.72 : x
  2. Step 2: Convert to fraction form
    448,065.72/618,330.34 = 246,861.72/x
  3. Step 3: Cross multiply
    448,065.72x = 618,330.34 × 246,861.72
  4. Step 4: Simplify right side
    448,065.72x = 152,642,091,260.59
  5. Step 5: Solve for x
    x = 152,642,091,260.59/448,065.72
  6. Step 6: Final answer
    x = 340,668.98

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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.