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Finding the Fourth Proportional to 425,225.66, 637,839.37 and 399,244.10

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Solution

The fourth proportional to 425,225.66, 637,839.37 and 399,244.10 is: 598,866.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,225.66 : 637,839.37 = 399,244.10 : x
  2. Step 2: Convert to fraction form
    425,225.66/637,839.37 = 399,244.10/x
  3. Step 3: Cross multiply
    425,225.66x = 637,839.37 × 399,244.10
  4. Step 4: Simplify right side
    425,225.66x = 254,653,605,220.22
  5. Step 5: Solve for x
    x = 254,653,605,220.22/425,225.66
  6. Step 6: Final answer
    x = 598,866.98

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1.5x scale

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.