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Finding the Fourth Proportional to 406,455.84, 560,855.88 and 234,380.16

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Solution

The fourth proportional to 406,455.84, 560,855.88 and 234,380.16 is: 323,413.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,455.84 : 560,855.88 = 234,380.16 : x
  2. Step 2: Convert to fraction form
    406,455.84/560,855.88 = 234,380.16/x
  3. Step 3: Cross multiply
    406,455.84x = 560,855.88 × 234,380.16
  4. Step 4: Simplify right side
    406,455.84x = 131,453,490,891.34
  5. Step 5: Solve for x
    x = 131,453,490,891.34/406,455.84
  6. Step 6: Final answer
    x = 323,413.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.