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Finding the Fourth Proportional to 418,841.34, 623,524.80 and 416,350.23

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Solution

The fourth proportional to 418,841.34, 623,524.80 and 416,350.23 is: 619,816.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,841.34 : 623,524.80 = 416,350.23 : x
  2. Step 2: Convert to fraction form
    418,841.34/623,524.80 = 416,350.23/x
  3. Step 3: Cross multiply
    418,841.34x = 623,524.80 × 416,350.23
  4. Step 4: Simplify right side
    418,841.34x = 259,604,693,890.70
  5. Step 5: Solve for x
    x = 259,604,693,890.70/418,841.34
  6. Step 6: Final answer
    x = 619,816.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.