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Finding the Fourth Proportional to 440,378.88, 607,712.40 and 259,102.32

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Solution

The fourth proportional to 440,378.88, 607,712.40 and 259,102.32 is: 357,555.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,378.88 : 607,712.40 = 259,102.32 : x
  2. Step 2: Convert to fraction form
    440,378.88/607,712.40 = 259,102.32/x
  3. Step 3: Cross multiply
    440,378.88x = 607,712.40 × 259,102.32
  4. Step 4: Simplify right side
    440,378.88x = 157,459,691,434.31
  5. Step 5: Solve for x
    x = 157,459,691,434.31/440,378.88
  6. Step 6: Final answer
    x = 357,555.05

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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.