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Finding the Fourth Proportional to 440,497.75, 607,835.32 and 259,169.80

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Solution

The fourth proportional to 440,497.75, 607,835.32 and 259,169.80 is: 357,623.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,497.75 : 607,835.32 = 259,169.80 : x
  2. Step 2: Convert to fraction form
    440,497.75/607,835.32 = 259,169.80/x
  3. Step 3: Cross multiply
    440,497.75x = 607,835.32 × 259,169.80
  4. Step 4: Simplify right side
    440,497.75x = 157,532,558,317.34
  5. Step 5: Solve for x
    x = 157,532,558,317.34/440,497.75
  6. Step 6: Final answer
    x = 357,623.98

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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.