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Finding the Fourth Proportional to 623,558.01, 859,936.19 and 408,620.01

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Solution

The fourth proportional to 623,558.01, 859,936.19 and 408,620.01 is: 563,519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,558.01 : 859,936.19 = 408,620.01 : x
  2. Step 2: Convert to fraction form
    623,558.01/859,936.19 = 408,620.01/x
  3. Step 3: Cross multiply
    623,558.01x = 859,936.19 × 408,620.01
  4. Step 4: Simplify right side
    623,558.01x = 351,387,132,514.06
  5. Step 5: Solve for x
    x = 351,387,132,514.06/623,558.01
  6. Step 6: Final answer
    x = 563,519.56

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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.