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Finding the Fourth Proportional to 528,052.15, 741,139.25 and 528,052.15

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Solution

The fourth proportional to 528,052.15, 741,139.25 and 528,052.15 is: 741,139.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,052.15 : 741,139.25 = 528,052.15 : x
  2. Step 2: Convert to fraction form
    528,052.15/741,139.25 = 528,052.15/x
  3. Step 3: Cross multiply
    528,052.15x = 741,139.25 × 528,052.15
  4. Step 4: Simplify right side
    528,052.15x = 391,360,174,411.89
  5. Step 5: Solve for x
    x = 391,360,174,411.89/528,052.15
  6. Step 6: Final answer
    x = 741,139.25

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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.