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Finding the Fourth Proportional to 433,863.80, 651,215.51 and 209,382.26

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Solution

The fourth proportional to 433,863.80, 651,215.51 and 209,382.26 is: 314,275.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,863.80 : 651,215.51 = 209,382.26 : x
  2. Step 2: Convert to fraction form
    433,863.80/651,215.51 = 209,382.26/x
  3. Step 3: Cross multiply
    433,863.80x = 651,215.51 × 209,382.26
  4. Step 4: Simplify right side
    433,863.80x = 136,352,970,927.86
  5. Step 5: Solve for x
    x = 136,352,970,927.86/433,863.80
  6. Step 6: Final answer
    x = 314,275.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.