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Finding the Fourth Proportional to 395,041.80, 592,562.70 and 290,065.80

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Solution

The fourth proportional to 395,041.80, 592,562.70 and 290,065.80 is: 435,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,041.80 : 592,562.70 = 290,065.80 : x
  2. Step 2: Convert to fraction form
    395,041.80/592,562.70 = 290,065.80/x
  3. Step 3: Cross multiply
    395,041.80x = 592,562.70 × 290,065.80
  4. Step 4: Simplify right side
    395,041.80x = 171,882,173,625.66
  5. Step 5: Solve for x
    x = 171,882,173,625.66/395,041.80
  6. Step 6: Final answer
    x = 435,098.70

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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.