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Finding the Fourth Proportional to 572,030.30, 858,701.55 and 347,644.10

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Solution

The fourth proportional to 572,030.30, 858,701.55 and 347,644.10 is: 521,864.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,030.30 : 858,701.55 = 347,644.10 : x
  2. Step 2: Convert to fraction form
    572,030.30/858,701.55 = 347,644.10/x
  3. Step 3: Cross multiply
    572,030.30x = 858,701.55 × 347,644.10
  4. Step 4: Simplify right side
    572,030.30x = 298,522,527,518.36
  5. Step 5: Solve for x
    x = 298,522,527,518.36/572,030.30
  6. Step 6: Final answer
    x = 521,864.89

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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.