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Finding the Fourth Proportional to 621,858.69, 933,290.60 and 322,424.91

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Solution

The fourth proportional to 621,858.69, 933,290.60 and 322,424.91 is: 483,897.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,858.69 : 933,290.60 = 322,424.91 : x
  2. Step 2: Convert to fraction form
    621,858.69/933,290.60 = 322,424.91/x
  3. Step 3: Cross multiply
    621,858.69x = 933,290.60 × 322,424.91
  4. Step 4: Simplify right side
    621,858.69x = 300,916,136,096.72
  5. Step 5: Solve for x
    x = 300,916,136,096.72/621,858.69
  6. Step 6: Final answer
    x = 483,897.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.