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Finding the Fourth Proportional to 506,885.99, 699,500.93 and 274,312.50

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Solution

The fourth proportional to 506,885.99, 699,500.93 and 274,312.50 is: 378,550.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,885.99 : 699,500.93 = 274,312.50 : x
  2. Step 2: Convert to fraction form
    506,885.99/699,500.93 = 274,312.50/x
  3. Step 3: Cross multiply
    506,885.99x = 699,500.93 × 274,312.50
  4. Step 4: Simplify right side
    506,885.99x = 191,881,847,489.06
  5. Step 5: Solve for x
    x = 191,881,847,489.06/506,885.99
  6. Step 6: Final answer
    x = 378,550.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.