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Finding the Fourth Proportional to 572,394.54, 858,736.80 and 404,243.40

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Solution

The fourth proportional to 572,394.54, 858,736.80 and 404,243.40 is: 606,467.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,394.54 : 858,736.80 = 404,243.40 : x
  2. Step 2: Convert to fraction form
    572,394.54/858,736.80 = 404,243.40/x
  3. Step 3: Cross multiply
    572,394.54x = 858,736.80 × 404,243.40
  4. Step 4: Simplify right side
    572,394.54x = 347,138,683,737.12
  5. Step 5: Solve for x
    x = 347,138,683,737.12/572,394.54
  6. Step 6: Final answer
    x = 606,467.50

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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.