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Finding the Fourth Proportional to 436,453.61, 602,236.59 and 245,430.09

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Solution

The fourth proportional to 436,453.61, 602,236.59 and 245,430.09 is: 338,654.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,453.61 : 602,236.59 = 245,430.09 : x
  2. Step 2: Convert to fraction form
    436,453.61/602,236.59 = 245,430.09/x
  3. Step 3: Cross multiply
    436,453.61x = 602,236.59 × 245,430.09
  4. Step 4: Simplify right side
    436,453.61x = 147,806,980,964.75
  5. Step 5: Solve for x
    x = 147,806,980,964.75/436,453.61
  6. Step 6: Final answer
    x = 338,654.51

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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.