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Finding the Fourth Proportional to 425,384.40, 587,032.20 and 234,388.56

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Solution

The fourth proportional to 425,384.40, 587,032.20 and 234,388.56 is: 323,457.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,384.40 : 587,032.20 = 234,388.56 : x
  2. Step 2: Convert to fraction form
    425,384.40/587,032.20 = 234,388.56/x
  3. Step 3: Cross multiply
    425,384.40x = 587,032.20 × 234,388.56
  4. Step 4: Simplify right side
    425,384.40x = 137,593,632,031.63
  5. Step 5: Solve for x
    x = 137,593,632,031.63/425,384.40
  6. Step 6: Final answer
    x = 323,457.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.