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Finding the Fourth Proportional to 472,646.20, 709,430.10 and 236,255.80

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Solution

The fourth proportional to 472,646.20, 709,430.10 and 236,255.80 is: 354,614.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,646.20 : 709,430.10 = 236,255.80 : x
  2. Step 2: Convert to fraction form
    472,646.20/709,430.10 = 236,255.80/x
  3. Step 3: Cross multiply
    472,646.20x = 709,430.10 × 236,255.80
  4. Step 4: Simplify right side
    472,646.20x = 167,606,975,819.58
  5. Step 5: Solve for x
    x = 167,606,975,819.58/472,646.20
  6. Step 6: Final answer
    x = 354,614.03

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1.5x scale

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.