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Finding the Fourth Proportional to 337,412.40, 506,118.60 and 290,756.40

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Solution

The fourth proportional to 337,412.40, 506,118.60 and 290,756.40 is: 436,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,412.40 : 506,118.60 = 290,756.40 : x
  2. Step 2: Convert to fraction form
    337,412.40/506,118.60 = 290,756.40/x
  3. Step 3: Cross multiply
    337,412.40x = 506,118.60 × 290,756.40
  4. Step 4: Simplify right side
    337,412.40x = 147,157,222,109.04
  5. Step 5: Solve for x
    x = 147,157,222,109.04/337,412.40
  6. Step 6: Final answer
    x = 436,134.60

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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.