Home / 669,201.60-923,092.40-397,090.16

Finding the Fourth Proportional to 669,201.60, 923,092.40 and 397,090.16

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Solution

The fourth proportional to 669,201.60, 923,092.40 and 397,090.16 is: 547,743.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,201.60 : 923,092.40 = 397,090.16 : x
  2. Step 2: Convert to fraction form
    669,201.60/923,092.40 = 397,090.16/x
  3. Step 3: Cross multiply
    669,201.60x = 923,092.40 × 397,090.16
  4. Step 4: Simplify right side
    669,201.60x = 366,550,908,810.78
  5. Step 5: Solve for x
    x = 366,550,908,810.78/669,201.60
  6. Step 6: Final answer
    x = 547,743.62

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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.