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Finding the Fourth Proportional to 586,286.86, 879,581.91 and 343,333.11

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Solution

The fourth proportional to 586,286.86, 879,581.91 and 343,333.11 is: 515,088.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,286.86 : 879,581.91 = 343,333.11 : x
  2. Step 2: Convert to fraction form
    586,286.86/879,581.91 = 343,333.11/x
  3. Step 3: Cross multiply
    586,286.86x = 879,581.91 × 343,333.11
  4. Step 4: Simplify right side
    586,286.86x = 301,989,592,660.04
  5. Step 5: Solve for x
    x = 301,989,592,660.04/586,286.86
  6. Step 6: Final answer
    x = 515,088.45

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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.