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Finding the Fourth Proportional to 326,064.10, 489,096.15 and 214,089.70

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Solution

The fourth proportional to 326,064.10, 489,096.15 and 214,089.70 is: 321,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,064.10 : 489,096.15 = 214,089.70 : x
  2. Step 2: Convert to fraction form
    326,064.10/489,096.15 = 214,089.70/x
  3. Step 3: Cross multiply
    326,064.10x = 489,096.15 × 214,089.70
  4. Step 4: Simplify right side
    326,064.10x = 104,710,448,024.66
  5. Step 5: Solve for x
    x = 104,710,448,024.66/326,064.10
  6. Step 6: Final answer
    x = 321,134.55

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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.