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Finding the Fourth Proportional to 586,054.85, 879,082.26 and 386,328.53

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Solution

The fourth proportional to 586,054.85, 879,082.26 and 386,328.53 is: 579,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,054.85 : 879,082.26 = 386,328.53 : x
  2. Step 2: Convert to fraction form
    586,054.85/879,082.26 = 386,328.53/x
  3. Step 3: Cross multiply
    586,054.85x = 879,082.26 × 386,328.53
  4. Step 4: Simplify right side
    586,054.85x = 339,614,552,859.47
  5. Step 5: Solve for x
    x = 339,614,552,859.47/586,054.85
  6. Step 6: Final answer
    x = 579,492.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.