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Finding the Fourth Proportional to 528,071.90, 741,166.90 and 528,071.90

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Solution

The fourth proportional to 528,071.90, 741,166.90 and 528,071.90 is: 741,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,071.90 : 741,166.90 = 528,071.90 : x
  2. Step 2: Convert to fraction form
    528,071.90/741,166.90 = 528,071.90/x
  3. Step 3: Cross multiply
    528,071.90x = 741,166.90 × 528,071.90
  4. Step 4: Simplify right side
    528,071.90x = 391,389,413,100.11
  5. Step 5: Solve for x
    x = 391,389,413,100.11/528,071.90
  6. Step 6: Final answer
    x = 741,166.90

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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.