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Finding the Fourth Proportional to 436,602.98, 602,421.23 and 255,279.71

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Solution

The fourth proportional to 436,602.98, 602,421.23 and 255,279.71 is: 352,232.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,602.98 : 602,421.23 = 255,279.71 : x
  2. Step 2: Convert to fraction form
    436,602.98/602,421.23 = 255,279.71/x
  3. Step 3: Cross multiply
    436,602.98x = 602,421.23 × 255,279.71
  4. Step 4: Simplify right side
    436,602.98x = 153,785,915,615.85
  5. Step 5: Solve for x
    x = 153,785,915,615.85/436,602.98
  6. Step 6: Final answer
    x = 352,232.86

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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.