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Finding the Fourth Proportional to 654,998.09, 903,890.98 and 364,605.05

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Solution

The fourth proportional to 654,998.09, 903,890.98 and 364,605.05 is: 503,151.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,998.09 : 903,890.98 = 364,605.05 : x
  2. Step 2: Convert to fraction form
    654,998.09/903,890.98 = 364,605.05/x
  3. Step 3: Cross multiply
    654,998.09x = 903,890.98 × 364,605.05
  4. Step 4: Simplify right side
    654,998.09x = 329,563,215,957.45
  5. Step 5: Solve for x
    x = 329,563,215,957.45/654,998.09
  6. Step 6: Final answer
    x = 503,151.42

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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.