Home / 864,706.85-1,193,613.90-520,558.79

Finding the Fourth Proportional to 864,706.85, 1,193,613.90 and 520,558.79

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Solution

The fourth proportional to 864,706.85, 1,193,613.90 and 520,558.79 is: 718,562.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,706.85 : 1,193,613.90 = 520,558.79 : x
  2. Step 2: Convert to fraction form
    864,706.85/1,193,613.90 = 520,558.79/x
  3. Step 3: Cross multiply
    864,706.85x = 1,193,613.90 × 520,558.79
  4. Step 4: Simplify right side
    864,706.85x = 621,346,201,543.11
  5. Step 5: Solve for x
    x = 621,346,201,543.11/864,706.85
  6. Step 6: Final answer
    x = 718,562.83

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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.