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Finding the Fourth Proportional to 448,275.87, 618,620.93 and 254,683.92

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Solution

The fourth proportional to 448,275.87, 618,620.93 and 254,683.92 is: 351,463.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,275.87 : 618,620.93 = 254,683.92 : x
  2. Step 2: Convert to fraction form
    448,275.87/618,620.93 = 254,683.92/x
  3. Step 3: Cross multiply
    448,275.87x = 618,620.93 × 254,683.92
  4. Step 4: Simplify right side
    448,275.87x = 157,552,801,899.89
  5. Step 5: Solve for x
    x = 157,552,801,899.89/448,275.87
  6. Step 6: Final answer
    x = 351,463.93

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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.