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Finding the Fourth Proportional to 607,892.20, 910,526.10 and 395,315.80

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Solution

The fourth proportional to 607,892.20, 910,526.10 and 395,315.80 is: 592,120.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,892.20 : 910,526.10 = 395,315.80 : x
  2. Step 2: Convert to fraction form
    607,892.20/910,526.10 = 395,315.80/x
  3. Step 3: Cross multiply
    607,892.20x = 910,526.10 × 395,315.80
  4. Step 4: Simplify right side
    607,892.20x = 359,945,353,642.38
  5. Step 5: Solve for x
    x = 359,945,353,642.38/607,892.20
  6. Step 6: Final answer
    x = 592,120.37

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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.