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Finding the Fourth Proportional to 448,137.50, 618,459.72 and 246,933.50

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Solution

The fourth proportional to 448,137.50, 618,459.72 and 246,933.50 is: 340,784.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,137.50 : 618,459.72 = 246,933.50 : x
  2. Step 2: Convert to fraction form
    448,137.50/618,459.72 = 246,933.50/x
  3. Step 3: Cross multiply
    448,137.50x = 618,459.72 × 246,933.50
  4. Step 4: Simplify right side
    448,137.50x = 152,718,423,268.62
  5. Step 5: Solve for x
    x = 152,718,423,268.62/448,137.50
  6. Step 6: Final answer
    x = 340,784.74

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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.