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Finding the Fourth Proportional to 260,782.32, 359,888.16 and 147,602.64

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Solution

The fourth proportional to 260,782.32, 359,888.16 and 147,602.64 is: 203,696.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,782.32 : 359,888.16 = 147,602.64 : x
  2. Step 2: Convert to fraction form
    260,782.32/359,888.16 = 147,602.64/x
  3. Step 3: Cross multiply
    260,782.32x = 359,888.16 × 147,602.64
  4. Step 4: Simplify right side
    260,782.32x = 53,120,442,520.74
  5. Step 5: Solve for x
    x = 53,120,442,520.74/260,782.32
  6. Step 6: Final answer
    x = 203,696.49

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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.