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Finding the Fourth Proportional to 328,086.90, 459,632.70 and 328,086.90

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Solution

The fourth proportional to 328,086.90, 459,632.70 and 328,086.90 is: 459,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,086.90 : 459,632.70 = 328,086.90 : x
  2. Step 2: Convert to fraction form
    328,086.90/459,632.70 = 328,086.90/x
  3. Step 3: Cross multiply
    328,086.90x = 459,632.70 × 328,086.90
  4. Step 4: Simplify right side
    328,086.90x = 150,799,467,681.63
  5. Step 5: Solve for x
    x = 150,799,467,681.63/328,086.90
  6. Step 6: Final answer
    x = 459,632.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.