Home / 708,076.35-977,156.55-385,786.31

Finding the Fourth Proportional to 708,076.35, 977,156.55 and 385,786.31

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Solution

The fourth proportional to 708,076.35, 977,156.55 and 385,786.31 is: 532,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,076.35 : 977,156.55 = 385,786.31 : x
  2. Step 2: Convert to fraction form
    708,076.35/977,156.55 = 385,786.31/x
  3. Step 3: Cross multiply
    708,076.35x = 977,156.55 × 385,786.31
  4. Step 4: Simplify right side
    708,076.35x = 376,973,614,831.05
  5. Step 5: Solve for x
    x = 376,973,614,831.05/708,076.35
  6. Step 6: Final answer
    x = 532,391.20

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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.