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Finding the Fourth Proportional to 450,420.19, 621,574.44 and 246,468.85

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Solution

The fourth proportional to 450,420.19, 621,574.44 and 246,468.85 is: 340,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,420.19 : 621,574.44 = 246,468.85 : x
  2. Step 2: Convert to fraction form
    450,420.19/621,574.44 = 246,468.85/x
  3. Step 3: Cross multiply
    450,420.19x = 621,574.44 × 246,468.85
  4. Step 4: Simplify right side
    450,420.19x = 153,198,737,416.19
  5. Step 5: Solve for x
    x = 153,198,737,416.19/450,420.19
  6. Step 6: Final answer
    x = 340,124.05

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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.