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Finding the Fourth Proportional to 508,404.40, 701,306.58 and 317,085.64

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Solution

The fourth proportional to 508,404.40, 701,306.58 and 317,085.64 is: 437,396.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,404.40 : 701,306.58 = 317,085.64 : x
  2. Step 2: Convert to fraction form
    508,404.40/701,306.58 = 317,085.64/x
  3. Step 3: Cross multiply
    508,404.40x = 701,306.58 × 317,085.64
  4. Step 4: Simplify right side
    508,404.40x = 222,374,245,755.51
  5. Step 5: Solve for x
    x = 222,374,245,755.51/508,404.40
  6. Step 6: Final answer
    x = 437,396.38

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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.