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Finding the Fourth Proportional to 572,624.94, 790,223.82 and 317,976.10

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Solution

The fourth proportional to 572,624.94, 790,223.82 and 317,976.10 is: 438,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,624.94 : 790,223.82 = 317,976.10 : x
  2. Step 2: Convert to fraction form
    572,624.94/790,223.82 = 317,976.10/x
  3. Step 3: Cross multiply
    572,624.94x = 790,223.82 × 317,976.10
  4. Step 4: Simplify right side
    572,624.94x = 251,272,288,410.70
  5. Step 5: Solve for x
    x = 251,272,288,410.70/572,624.94
  6. Step 6: Final answer
    x = 438,807.80

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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.