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Finding the Fourth Proportional to 720,417.11, 994,148.75 and 414,540.80

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Solution

The fourth proportional to 720,417.11, 994,148.75 and 414,540.80 is: 572,050.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,417.11 : 994,148.75 = 414,540.80 : x
  2. Step 2: Convert to fraction form
    720,417.11/994,148.75 = 414,540.80/x
  3. Step 3: Cross multiply
    720,417.11x = 994,148.75 × 414,540.80
  4. Step 4: Simplify right side
    720,417.11x = 412,115,211,100.55
  5. Step 5: Solve for x
    x = 412,115,211,100.55/720,417.11
  6. Step 6: Final answer
    x = 572,050.84

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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.