Home / 708,397.18-977,581.86-386,107.30

Finding the Fourth Proportional to 708,397.18, 977,581.86 and 386,107.30

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Solution

The fourth proportional to 708,397.18, 977,581.86 and 386,107.30 is: 532,824.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,397.18 : 977,581.86 = 386,107.30 : x
  2. Step 2: Convert to fraction form
    708,397.18/977,581.86 = 386,107.30/x
  3. Step 3: Cross multiply
    708,397.18x = 977,581.86 × 386,107.30
  4. Step 4: Simplify right side
    708,397.18x = 377,451,492,493.58
  5. Step 5: Solve for x
    x = 377,451,492,493.58/708,397.18
  6. Step 6: Final answer
    x = 532,824.67

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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.