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Finding the Fourth Proportional to 447,978.54, 618,210.45 and 246,774.54

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Solution

The fourth proportional to 447,978.54, 618,210.45 and 246,774.54 is: 340,548.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,978.54 : 618,210.45 = 246,774.54 : x
  2. Step 2: Convert to fraction form
    447,978.54/618,210.45 = 246,774.54/x
  3. Step 3: Cross multiply
    447,978.54x = 618,210.45 × 246,774.54
  4. Step 4: Simplify right side
    447,978.54x = 152,558,599,421.94
  5. Step 5: Solve for x
    x = 152,558,599,421.94/447,978.54
  6. Step 6: Final answer
    x = 340,548.90

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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.