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Finding the Fourth Proportional to 359,242.80, 538,864.20 and 303,946.80

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Solution

The fourth proportional to 359,242.80, 538,864.20 and 303,946.80 is: 455,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,242.80 : 538,864.20 = 303,946.80 : x
  2. Step 2: Convert to fraction form
    359,242.80/538,864.20 = 303,946.80/x
  3. Step 3: Cross multiply
    359,242.80x = 538,864.20 × 303,946.80
  4. Step 4: Simplify right side
    359,242.80x = 163,786,049,224.56
  5. Step 5: Solve for x
    x = 163,786,049,224.56/359,242.80
  6. Step 6: Final answer
    x = 455,920.20

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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.