Home / 656,938.89-906,821.46-511,456.41

Finding the Fourth Proportional to 656,938.89, 906,821.46 and 511,456.41

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Solution

The fourth proportional to 656,938.89, 906,821.46 and 511,456.41 is: 706,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,938.89 : 906,821.46 = 511,456.41 : x
  2. Step 2: Convert to fraction form
    656,938.89/906,821.46 = 511,456.41/x
  3. Step 3: Cross multiply
    656,938.89x = 906,821.46 × 511,456.41
  4. Step 4: Simplify right side
    656,938.89x = 463,799,648,442.56
  5. Step 5: Solve for x
    x = 463,799,648,442.56/656,938.89
  6. Step 6: Final answer
    x = 706,001.21

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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.