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Finding the Fourth Proportional to 561,836.83, 774,817.76 and 368,174.20

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Solution

The fourth proportional to 561,836.83, 774,817.76 and 368,174.20 is: 507,741.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,836.83 : 774,817.76 = 368,174.20 : x
  2. Step 2: Convert to fraction form
    561,836.83/774,817.76 = 368,174.20/x
  3. Step 3: Cross multiply
    561,836.83x = 774,817.76 × 368,174.20
  4. Step 4: Simplify right side
    561,836.83x = 285,267,908,933.79
  5. Step 5: Solve for x
    x = 285,267,908,933.79/561,836.83
  6. Step 6: Final answer
    x = 507,741.56

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1.5x scale

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.