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Finding the Fourth Proportional to 621,907.61, 858,276.07 and 350,001.68

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Solution

The fourth proportional to 621,907.61, 858,276.07 and 350,001.68 is: 483,026.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,907.61 : 858,276.07 = 350,001.68 : x
  2. Step 2: Convert to fraction form
    621,907.61/858,276.07 = 350,001.68/x
  3. Step 3: Cross multiply
    621,907.61x = 858,276.07 × 350,001.68
  4. Step 4: Simplify right side
    621,907.61x = 300,398,061,237.41
  5. Step 5: Solve for x
    x = 300,398,061,237.41/621,907.61
  6. Step 6: Final answer
    x = 483,026.83

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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.