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Finding the Fourth Proportional to 436,608.83, 602,321.06 and 315,558.38

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Solution

The fourth proportional to 436,608.83, 602,321.06 and 315,558.38 is: 435,326.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,608.83 : 602,321.06 = 315,558.38 : x
  2. Step 2: Convert to fraction form
    436,608.83/602,321.06 = 315,558.38/x
  3. Step 3: Cross multiply
    436,608.83x = 602,321.06 × 315,558.38
  4. Step 4: Simplify right side
    436,608.83x = 190,067,460,228.18
  5. Step 5: Solve for x
    x = 190,067,460,228.18/436,608.83
  6. Step 6: Final answer
    x = 435,326.65

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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.