Home / 663,619.26-915,826.59-373,321.74

Finding the Fourth Proportional to 663,619.26, 915,826.59 and 373,321.74

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Solution

The fourth proportional to 663,619.26, 915,826.59 and 373,321.74 is: 515,202.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,619.26 : 915,826.59 = 373,321.74 : x
  2. Step 2: Convert to fraction form
    663,619.26/915,826.59 = 373,321.74/x
  3. Step 3: Cross multiply
    663,619.26x = 915,826.59 × 373,321.74
  4. Step 4: Simplify right side
    663,619.26x = 341,897,976,117.07
  5. Step 5: Solve for x
    x = 341,897,976,117.07/663,619.26
  6. Step 6: Final answer
    x = 515,202.01

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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.