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Finding the Fourth Proportional to 693,010.18, 956,369.73 and 406,736.74

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Solution

The fourth proportional to 693,010.18, 956,369.73 and 406,736.74 is: 561,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,010.18 : 956,369.73 = 406,736.74 : x
  2. Step 2: Convert to fraction form
    693,010.18/956,369.73 = 406,736.74/x
  3. Step 3: Cross multiply
    693,010.18x = 956,369.73 × 406,736.74
  4. Step 4: Simplify right side
    693,010.18x = 388,990,706,214.88
  5. Step 5: Solve for x
    x = 388,990,706,214.88/693,010.18
  6. Step 6: Final answer
    x = 561,305.90

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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.