Home / 714,217.39-985,635.05-391,924.67

Finding the Fourth Proportional to 714,217.39, 985,635.05 and 391,924.67

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Solution

The fourth proportional to 714,217.39, 985,635.05 and 391,924.67 is: 540,864.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,217.39 : 985,635.05 = 391,924.67 : x
  2. Step 2: Convert to fraction form
    714,217.39/985,635.05 = 391,924.67/x
  3. Step 3: Cross multiply
    714,217.39x = 985,635.05 × 391,924.67
  4. Step 4: Simplify right side
    714,217.39x = 386,294,684,823.89
  5. Step 5: Solve for x
    x = 386,294,684,823.89/714,217.39
  6. Step 6: Final answer
    x = 540,864.30

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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.