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Finding the Fourth Proportional to 614,260.16, 921,514.08 and 259,274.56

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Solution

The fourth proportional to 614,260.16, 921,514.08 and 259,274.56 is: 388,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,260.16 : 921,514.08 = 259,274.56 : x
  2. Step 2: Convert to fraction form
    614,260.16/921,514.08 = 259,274.56/x
  3. Step 3: Cross multiply
    614,260.16x = 921,514.08 × 259,274.56
  4. Step 4: Simplify right side
    614,260.16x = 238,925,157,625.81
  5. Step 5: Solve for x
    x = 238,925,157,625.81/614,260.16
  6. Step 6: Final answer
    x = 388,964.11

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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.