Home / 864,403.72-1,191,449.40-577,819.24

Finding the Fourth Proportional to 864,403.72, 1,191,449.40 and 577,819.24

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Solution

The fourth proportional to 864,403.72, 1,191,449.40 and 577,819.24 is: 796,436.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,403.72 : 1,191,449.40 = 577,819.24 : x
  2. Step 2: Convert to fraction form
    864,403.72/1,191,449.40 = 577,819.24/x
  3. Step 3: Cross multiply
    864,403.72x = 1,191,449.40 × 577,819.24
  4. Step 4: Simplify right side
    864,403.72x = 688,442,386,806.46
  5. Step 5: Solve for x
    x = 688,442,386,806.46/864,403.72
  6. Step 6: Final answer
    x = 796,436.17

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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.