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Finding the Fourth Proportional to 440,370.72, 607,712.76 and 259,089.48

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Solution

The fourth proportional to 440,370.72, 607,712.76 and 259,089.48 is: 357,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,370.72 : 607,712.76 = 259,089.48 : x
  2. Step 2: Convert to fraction form
    440,370.72/607,712.76 = 259,089.48/x
  3. Step 3: Cross multiply
    440,370.72x = 607,712.76 × 259,089.48
  4. Step 4: Simplify right side
    440,370.72x = 157,451,982,977.77
  5. Step 5: Solve for x
    x = 157,451,982,977.77/440,370.72
  6. Step 6: Final answer
    x = 357,544.17

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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.