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Finding the Fourth Proportional to 623,578.95, 933,028.34 and 369,930.69

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Solution

The fourth proportional to 623,578.95, 933,028.34 and 369,930.69 is: 553,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,578.95 : 933,028.34 = 369,930.69 : x
  2. Step 2: Convert to fraction form
    623,578.95/933,028.34 = 369,930.69/x
  3. Step 3: Cross multiply
    623,578.95x = 933,028.34 × 369,930.69
  4. Step 4: Simplify right side
    623,578.95x = 345,155,815,756.10
  5. Step 5: Solve for x
    x = 345,155,815,756.10/623,578.95
  6. Step 6: Final answer
    x = 553,507.80

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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.