Home / 856,833.09-1,182,381.60-469,574.72

Finding the Fourth Proportional to 856,833.09, 1,182,381.60 and 469,574.72

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Solution

The fourth proportional to 856,833.09, 1,182,381.60 and 469,574.72 is: 647,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,833.09 : 1,182,381.60 = 469,574.72 : x
  2. Step 2: Convert to fraction form
    856,833.09/1,182,381.60 = 469,574.72/x
  3. Step 3: Cross multiply
    856,833.09x = 1,182,381.60 × 469,574.72
  4. Step 4: Simplify right side
    856,833.09x = 555,216,509,036.08
  5. Step 5: Solve for x
    x = 555,216,509,036.08/856,833.09
  6. Step 6: Final answer
    x = 647,986.78

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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.