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Finding the Fourth Proportional to 425,196.04, 637,794.86 and 399,214.48

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Solution

The fourth proportional to 425,196.04, 637,794.86 and 399,214.48 is: 598,822.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,196.04 : 637,794.86 = 399,214.48 : x
  2. Step 2: Convert to fraction form
    425,196.04/637,794.86 = 399,214.48/x
  3. Step 3: Cross multiply
    425,196.04x = 637,794.86 × 399,214.48
  4. Step 4: Simplify right side
    425,196.04x = 254,616,943,381.57
  5. Step 5: Solve for x
    x = 254,616,943,381.57/425,196.04
  6. Step 6: Final answer
    x = 598,822.47

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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.