Home / 870,816.85-1,201,904.07-503,309.59

Finding the Fourth Proportional to 870,816.85, 1,201,904.07 and 503,309.59

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Solution

The fourth proportional to 870,816.85, 1,201,904.07 and 503,309.59 is: 694,669.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,816.85 : 1,201,904.07 = 503,309.59 : x
  2. Step 2: Convert to fraction form
    870,816.85/1,201,904.07 = 503,309.59/x
  3. Step 3: Cross multiply
    870,816.85x = 1,201,904.07 × 503,309.59
  4. Step 4: Simplify right side
    870,816.85x = 604,929,844,691.03
  5. Step 5: Solve for x
    x = 604,929,844,691.03/870,816.85
  6. Step 6: Final answer
    x = 694,669.43

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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.