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Finding the Fourth Proportional to 586,601.14, 809,504.85 and 318,329.14

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Solution

The fourth proportional to 586,601.14, 809,504.85 and 318,329.14 is: 439,291.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,601.14 : 809,504.85 = 318,329.14 : x
  2. Step 2: Convert to fraction form
    586,601.14/809,504.85 = 318,329.14/x
  3. Step 3: Cross multiply
    586,601.14x = 809,504.85 × 318,329.14
  4. Step 4: Simplify right side
    586,601.14x = 257,688,982,726.33
  5. Step 5: Solve for x
    x = 257,688,982,726.33/586,601.14
  6. Step 6: Final answer
    x = 439,291.65

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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.