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Finding the Fourth Proportional to 532,326.16, 734,608.38 and 290,611.72

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Solution

The fourth proportional to 532,326.16, 734,608.38 and 290,611.72 is: 401,043.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,326.16 : 734,608.38 = 290,611.72 : x
  2. Step 2: Convert to fraction form
    532,326.16/734,608.38 = 290,611.72/x
  3. Step 3: Cross multiply
    532,326.16x = 734,608.38 × 290,611.72
  4. Step 4: Simplify right side
    532,326.16x = 213,485,804,838.21
  5. Step 5: Solve for x
    x = 213,485,804,838.21/532,326.16
  6. Step 6: Final answer
    x = 401,043.23

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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.