Home / 708,395.18-977,586.09-386,105.54

Finding the Fourth Proportional to 708,395.18, 977,586.09 and 386,105.54

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Solution

The fourth proportional to 708,395.18, 977,586.09 and 386,105.54 is: 532,826.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,395.18 : 977,586.09 = 386,105.54 : x
  2. Step 2: Convert to fraction form
    708,395.18/977,586.09 = 386,105.54/x
  3. Step 3: Cross multiply
    708,395.18x = 977,586.09 × 386,105.54
  4. Step 4: Simplify right side
    708,395.18x = 377,451,405,175.94
  5. Step 5: Solve for x
    x = 377,451,405,175.94/708,395.18
  6. Step 6: Final answer
    x = 532,826.05

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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.