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Finding the Fourth Proportional to 835,396.12, 1,152,847.48 and 453,422.98

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Solution

The fourth proportional to 835,396.12, 1,152,847.48 and 453,422.98 is: 625,724.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,396.12 : 1,152,847.48 = 453,422.98 : x
  2. Step 2: Convert to fraction form
    835,396.12/1,152,847.48 = 453,422.98/x
  3. Step 3: Cross multiply
    835,396.12x = 1,152,847.48 × 453,422.98
  4. Step 4: Simplify right side
    835,396.12x = 522,727,539,867.09
  5. Step 5: Solve for x
    x = 522,727,539,867.09/835,396.12
  6. Step 6: Final answer
    x = 625,724.17

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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.