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Finding the Fourth Proportional to 418,973.77, 578,082.99 and 246,898.77

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Solution

The fourth proportional to 418,973.77, 578,082.99 and 246,898.77 is: 340,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,973.77 : 578,082.99 = 246,898.77 : x
  2. Step 2: Convert to fraction form
    418,973.77/578,082.99 = 246,898.77/x
  3. Step 3: Cross multiply
    418,973.77x = 578,082.99 × 246,898.77
  4. Step 4: Simplify right side
    418,973.77x = 142,727,979,188.92
  5. Step 5: Solve for x
    x = 142,727,979,188.92/418,973.77
  6. Step 6: Final answer
    x = 340,660.89

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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.