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Finding the Fourth Proportional to 436,059.11, 601,590.74 and 321,612.50

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Solution

The fourth proportional to 436,059.11, 601,590.74 and 321,612.50 is: 443,699.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,059.11 : 601,590.74 = 321,612.50 : x
  2. Step 2: Convert to fraction form
    436,059.11/601,590.74 = 321,612.50/x
  3. Step 3: Cross multiply
    436,059.11x = 601,590.74 × 321,612.50
  4. Step 4: Simplify right side
    436,059.11x = 193,479,097,252.23
  5. Step 5: Solve for x
    x = 193,479,097,252.23/436,059.11
  6. Step 6: Final answer
    x = 443,699.25

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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.