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Finding the Fourth Proportional to 406,455.48, 560,972.52 and 245,333.52

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Solution

The fourth proportional to 406,455.48, 560,972.52 and 245,333.52 is: 338,598.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,455.48 : 560,972.52 = 245,333.52 : x
  2. Step 2: Convert to fraction form
    406,455.48/560,972.52 = 245,333.52/x
  3. Step 3: Cross multiply
    406,455.48x = 560,972.52 × 245,333.52
  4. Step 4: Simplify right side
    406,455.48x = 137,625,362,954.87
  5. Step 5: Solve for x
    x = 137,625,362,954.87/406,455.48
  6. Step 6: Final answer
    x = 338,598.86

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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.