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Finding the Fourth Proportional to 623,841.54, 936,177.60 and 339,603.84

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Solution

The fourth proportional to 623,841.54, 936,177.60 and 339,603.84 is: 509,631.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,841.54 : 936,177.60 = 339,603.84 : x
  2. Step 2: Convert to fraction form
    623,841.54/936,177.60 = 339,603.84/x
  3. Step 3: Cross multiply
    623,841.54x = 936,177.60 × 339,603.84
  4. Step 4: Simplify right side
    623,841.54x = 317,929,507,881.98
  5. Step 5: Solve for x
    x = 317,929,507,881.98/623,841.54
  6. Step 6: Final answer
    x = 509,631.83

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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.