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Finding the Fourth Proportional to 417,492.45, 626,238.68 and 417,492.45

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Solution

The fourth proportional to 417,492.45, 626,238.68 and 417,492.45 is: 626,238.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,492.45 : 626,238.68 = 417,492.45 : x
  2. Step 2: Convert to fraction form
    417,492.45/626,238.68 = 417,492.45/x
  3. Step 3: Cross multiply
    417,492.45x = 626,238.68 × 417,492.45
  4. Step 4: Simplify right side
    417,492.45x = 261,449,918,710.50
  5. Step 5: Solve for x
    x = 261,449,918,710.50/417,492.45
  6. Step 6: Final answer
    x = 626,238.68

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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.