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Finding the Fourth Proportional to 436,478.60, 602,334.65 and 245,491.98

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Solution

The fourth proportional to 436,478.60, 602,334.65 and 245,491.98 is: 338,775.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,478.60 : 602,334.65 = 245,491.98 : x
  2. Step 2: Convert to fraction form
    436,478.60/602,334.65 = 245,491.98/x
  3. Step 3: Cross multiply
    436,478.60x = 602,334.65 × 245,491.98
  4. Step 4: Simplify right side
    436,478.60x = 147,868,324,623.65
  5. Step 5: Solve for x
    x = 147,868,324,623.65/436,478.60
  6. Step 6: Final answer
    x = 338,775.66

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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.