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Finding the Fourth Proportional to 447,856.74, 617,321.95 and 302,617.16

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Solution

The fourth proportional to 447,856.74, 617,321.95 and 302,617.16 is: 417,124.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,856.74 : 617,321.95 = 302,617.16 : x
  2. Step 2: Convert to fraction form
    447,856.74/617,321.95 = 302,617.16/x
  3. Step 3: Cross multiply
    447,856.74x = 617,321.95 × 302,617.16
  4. Step 4: Simplify right side
    447,856.74x = 186,812,210,714.97
  5. Step 5: Solve for x
    x = 186,812,210,714.97/447,856.74
  6. Step 6: Final answer
    x = 417,124.93

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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.