Home / 697,766.09-962,917.20-391,842.72

Finding the Fourth Proportional to 697,766.09, 962,917.20 and 391,842.72

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Solution

The fourth proportional to 697,766.09, 962,917.20 and 391,842.72 is: 540,742.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,766.09 : 962,917.20 = 391,842.72 : x
  2. Step 2: Convert to fraction form
    697,766.09/962,917.20 = 391,842.72/x
  3. Step 3: Cross multiply
    697,766.09x = 962,917.20 × 391,842.72
  4. Step 4: Simplify right side
    697,766.09x = 377,312,094,782.78
  5. Step 5: Solve for x
    x = 377,312,094,782.78/697,766.09
  6. Step 6: Final answer
    x = 540,742.96

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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.