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Finding the Fourth Proportional to 592,421.16, 816,690.87 and 422,360.04

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Solution

The fourth proportional to 592,421.16, 816,690.87 and 422,360.04 is: 582,250.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,421.16 : 816,690.87 = 422,360.04 : x
  2. Step 2: Convert to fraction form
    592,421.16/816,690.87 = 422,360.04/x
  3. Step 3: Cross multiply
    592,421.16x = 816,690.87 × 422,360.04
  4. Step 4: Simplify right side
    592,421.16x = 344,937,588,520.84
  5. Step 5: Solve for x
    x = 344,937,588,520.84/592,421.16
  6. Step 6: Final answer
    x = 582,250.62

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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.