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Finding the Fourth Proportional to 447,089.58, 616,931.90 and 256,091.58

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Solution

The fourth proportional to 447,089.58, 616,931.90 and 256,091.58 is: 353,376.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,089.58 : 616,931.90 = 256,091.58 : x
  2. Step 2: Convert to fraction form
    447,089.58/616,931.90 = 256,091.58/x
  3. Step 3: Cross multiply
    447,089.58x = 616,931.90 × 256,091.58
  4. Step 4: Simplify right side
    447,089.58x = 157,991,065,023.40
  5. Step 5: Solve for x
    x = 157,991,065,023.40/447,089.58
  6. Step 6: Final answer
    x = 353,376.76

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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.