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Finding the Fourth Proportional to 506,777.28, 760,243.68 and 191,227.20

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Solution

The fourth proportional to 506,777.28, 760,243.68 and 191,227.20 is: 286,870.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,777.28 : 760,243.68 = 191,227.20 : x
  2. Step 2: Convert to fraction form
    506,777.28/760,243.68 = 191,227.20/x
  3. Step 3: Cross multiply
    506,777.28x = 760,243.68 × 191,227.20
  4. Step 4: Simplify right side
    506,777.28x = 145,379,270,244.10
  5. Step 5: Solve for x
    x = 145,379,270,244.10/506,777.28
  6. Step 6: Final answer
    x = 286,870.14

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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.