Home / 864,727.34-1,193,642.16-520,579.28

Finding the Fourth Proportional to 864,727.34, 1,193,642.16 and 520,579.28

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Solution

The fourth proportional to 864,727.34, 1,193,642.16 and 520,579.28 is: 718,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,727.34 : 1,193,642.16 = 520,579.28 : x
  2. Step 2: Convert to fraction form
    864,727.34/1,193,642.16 = 520,579.28/x
  3. Step 3: Cross multiply
    864,727.34x = 1,193,642.16 × 520,579.28
  4. Step 4: Simplify right side
    864,727.34x = 621,385,370,262.23
  5. Step 5: Solve for x
    x = 621,385,370,262.23/864,727.34
  6. Step 6: Final answer
    x = 718,591.10

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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.