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Finding the Fourth Proportional to 572,855.40, 858,116.70 and 292,530.60

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Solution

The fourth proportional to 572,855.40, 858,116.70 and 292,530.60 is: 438,200.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,855.40 : 858,116.70 = 292,530.60 : x
  2. Step 2: Convert to fraction form
    572,855.40/858,116.70 = 292,530.60/x
  3. Step 3: Cross multiply
    572,855.40x = 858,116.70 × 292,530.60
  4. Step 4: Simplify right side
    572,855.40x = 251,025,393,121.02
  5. Step 5: Solve for x
    x = 251,025,393,121.02/572,855.40
  6. Step 6: Final answer
    x = 438,200.27

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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.