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Finding the Fourth Proportional to 610,501.25, 915,753.50 and 189,777.53

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Solution

The fourth proportional to 610,501.25, 915,753.50 and 189,777.53 is: 284,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,501.25 : 915,753.50 = 189,777.53 : x
  2. Step 2: Convert to fraction form
    610,501.25/915,753.50 = 189,777.53/x
  3. Step 3: Cross multiply
    610,501.25x = 915,753.50 × 189,777.53
  4. Step 4: Simplify right side
    610,501.25x = 173,789,437,318.86
  5. Step 5: Solve for x
    x = 173,789,437,318.86/610,501.25
  6. Step 6: Final answer
    x = 284,666.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.