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Finding the Fourth Proportional to 528,037.90, 741,119.30 and 528,037.90

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Solution

The fourth proportional to 528,037.90, 741,119.30 and 528,037.90 is: 741,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,037.90 : 741,119.30 = 528,037.90 : x
  2. Step 2: Convert to fraction form
    528,037.90/741,119.30 = 528,037.90/x
  3. Step 3: Cross multiply
    528,037.90x = 741,119.30 × 528,037.90
  4. Step 4: Simplify right side
    528,037.90x = 391,339,078,821.47
  5. Step 5: Solve for x
    x = 391,339,078,821.47/528,037.90
  6. Step 6: Final answer
    x = 741,119.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.