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Finding the Fourth Proportional to 439,756.36, 607,242.53 and 276,684.76

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Solution

The fourth proportional to 439,756.36, 607,242.53 and 276,684.76 is: 382,063.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,756.36 : 607,242.53 = 276,684.76 : x
  2. Step 2: Convert to fraction form
    439,756.36/607,242.53 = 276,684.76/x
  3. Step 3: Cross multiply
    439,756.36x = 607,242.53 × 276,684.76
  4. Step 4: Simplify right side
    439,756.36x = 168,014,753,674.84
  5. Step 5: Solve for x
    x = 168,014,753,674.84/439,756.36
  6. Step 6: Final answer
    x = 382,063.27

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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.