Home / 669,215.89-923,420.45-382,680.62

Finding the Fourth Proportional to 669,215.89, 923,420.45 and 382,680.62

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Solution

The fourth proportional to 669,215.89, 923,420.45 and 382,680.62 is: 528,043.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,215.89 : 923,420.45 = 382,680.62 : x
  2. Step 2: Convert to fraction form
    669,215.89/923,420.45 = 382,680.62/x
  3. Step 3: Cross multiply
    669,215.89x = 923,420.45 × 382,680.62
  4. Step 4: Simplify right side
    669,215.89x = 353,375,110,129.11
  5. Step 5: Solve for x
    x = 353,375,110,129.11/669,215.89
  6. Step 6: Final answer
    x = 528,043.51

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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.