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Finding the Fourth Proportional to 520,040.70, 730,156.50 and 520,040.70

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Solution

The fourth proportional to 520,040.70, 730,156.50 and 520,040.70 is: 730,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,040.70 : 730,156.50 = 520,040.70 : x
  2. Step 2: Convert to fraction form
    520,040.70/730,156.50 = 520,040.70/x
  3. Step 3: Cross multiply
    520,040.70x = 730,156.50 × 520,040.70
  4. Step 4: Simplify right side
    520,040.70x = 379,711,097,369.55
  5. Step 5: Solve for x
    x = 379,711,097,369.55/520,040.70
  6. Step 6: Final answer
    x = 730,156.50

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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.