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Finding the Fourth Proportional to 519,087.30, 724,950.75 and 519,087.30

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Solution

The fourth proportional to 519,087.30, 724,950.75 and 519,087.30 is: 724,950.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,087.30 : 724,950.75 = 519,087.30 : x
  2. Step 2: Convert to fraction form
    519,087.30/724,950.75 = 519,087.30/x
  3. Step 3: Cross multiply
    519,087.30x = 724,950.75 × 519,087.30
  4. Step 4: Simplify right side
    519,087.30x = 376,312,727,450.48
  5. Step 5: Solve for x
    x = 376,312,727,450.48/519,087.30
  6. Step 6: Final answer
    x = 724,950.75

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1.5x scale

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.