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Finding the Fourth Proportional to 572,859.40, 858,122.70 and 292,534.60

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Solution

The fourth proportional to 572,859.40, 858,122.70 and 292,534.60 is: 438,206.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,859.40 : 858,122.70 = 292,534.60 : x
  2. Step 2: Convert to fraction form
    572,859.40/858,122.70 = 292,534.60/x
  3. Step 3: Cross multiply
    572,859.40x = 858,122.70 × 292,534.60
  4. Step 4: Simplify right side
    572,859.40x = 251,030,580,795.42
  5. Step 5: Solve for x
    x = 251,030,580,795.42/572,859.40
  6. Step 6: Final answer
    x = 438,206.27

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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.