Home / 708,120.78-977,194.35-385,833.53

Finding the Fourth Proportional to 708,120.78, 977,194.35 and 385,833.53

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Solution

The fourth proportional to 708,120.78, 977,194.35 and 385,833.53 is: 532,443.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,120.78 : 977,194.35 = 385,833.53 : x
  2. Step 2: Convert to fraction form
    708,120.78/977,194.35 = 385,833.53/x
  3. Step 3: Cross multiply
    708,120.78x = 977,194.35 × 385,833.53
  4. Step 4: Simplify right side
    708,120.78x = 377,034,340,670.58
  5. Step 5: Solve for x
    x = 377,034,340,670.58/708,120.78
  6. Step 6: Final answer
    x = 532,443.55

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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.