Home / 539,115.94-743,968.10-297,398.72

Finding the Fourth Proportional to 539,115.94, 743,968.10 and 297,398.72

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Solution

The fourth proportional to 539,115.94, 743,968.10 and 297,398.72 is: 410,403.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,115.94 : 743,968.10 = 297,398.72 : x
  2. Step 2: Convert to fraction form
    539,115.94/743,968.10 = 297,398.72/x
  3. Step 3: Cross multiply
    539,115.94x = 743,968.10 × 297,398.72
  4. Step 4: Simplify right side
    539,115.94x = 221,255,160,660.83
  5. Step 5: Solve for x
    x = 221,255,160,660.83/539,115.94
  6. Step 6: Final answer
    x = 410,403.67

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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.