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Finding the Fourth Proportional to 693,083.68, 956,460 and 406,610.08

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Solution

The fourth proportional to 693,083.68, 956,460 and 406,610.08 is: 561,124.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,083.68 : 956,460 = 406,610.08 : x
  2. Step 2: Convert to fraction form
    693,083.68/956,460 = 406,610.08/x
  3. Step 3: Cross multiply
    693,083.68x = 956,460 × 406,610.08
  4. Step 4: Simplify right side
    693,083.68x = 388,906,277,116.80
  5. Step 5: Solve for x
    x = 388,906,277,116.80/693,083.68
  6. Step 6: Final answer
    x = 561,124.56

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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.