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Finding the Fourth Proportional to 447,492.86, 617,551.53 and 243,554.84

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Solution

The fourth proportional to 447,492.86, 617,551.53 and 243,554.84 is: 336,111.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,492.86 : 617,551.53 = 243,554.84 : x
  2. Step 2: Convert to fraction form
    447,492.86/617,551.53 = 243,554.84/x
  3. Step 3: Cross multiply
    447,492.86x = 617,551.53 × 243,554.84
  4. Step 4: Simplify right side
    447,492.86x = 150,407,664,080.91
  5. Step 5: Solve for x
    x = 150,407,664,080.91/447,492.86
  6. Step 6: Final answer
    x = 336,111.87

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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.