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Finding the Fourth Proportional to 707,800.30, 976,860.83 and 417,493.87

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Solution

The fourth proportional to 707,800.30, 976,860.83 and 417,493.87 is: 576,198.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,800.30 : 976,860.83 = 417,493.87 : x
  2. Step 2: Convert to fraction form
    707,800.30/976,860.83 = 417,493.87/x
  3. Step 3: Cross multiply
    707,800.30x = 976,860.83 × 417,493.87
  4. Step 4: Simplify right side
    707,800.30x = 407,833,406,969.70
  5. Step 5: Solve for x
    x = 407,833,406,969.70/707,800.30
  6. Step 6: Final answer
    x = 576,198.41

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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.