Home / 511,237.90-705,560.79-307,355.23

Finding the Fourth Proportional to 511,237.90, 705,560.79 and 307,355.23

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Solution

The fourth proportional to 511,237.90, 705,560.79 and 307,355.23 is: 424,181.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,237.90 : 705,560.79 = 307,355.23 : x
  2. Step 2: Convert to fraction form
    511,237.90/705,560.79 = 307,355.23/x
  3. Step 3: Cross multiply
    511,237.90x = 705,560.79 × 307,355.23
  4. Step 4: Simplify right side
    511,237.90x = 216,857,798,889.43
  5. Step 5: Solve for x
    x = 216,857,798,889.43/511,237.90
  6. Step 6: Final answer
    x = 424,181.77

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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.