Home / 708,664.54-977,943.90-386,377.42

Finding the Fourth Proportional to 708,664.54, 977,943.90 and 386,377.42

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Solution

The fourth proportional to 708,664.54, 977,943.90 and 386,377.42 is: 533,193.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,664.54 : 977,943.90 = 386,377.42 : x
  2. Step 2: Convert to fraction form
    708,664.54/977,943.90 = 386,377.42/x
  3. Step 3: Cross multiply
    708,664.54x = 977,943.90 × 386,377.42
  4. Step 4: Simplify right side
    708,664.54x = 377,855,440,986.74
  5. Step 5: Solve for x
    x = 377,855,440,986.74/708,664.54
  6. Step 6: Final answer
    x = 533,193.66

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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.