Home / 287,444.45-396,837.76-190,779.39

Finding the Fourth Proportional to 287,444.45, 396,837.76 and 190,779.39

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Solution

The fourth proportional to 287,444.45, 396,837.76 and 190,779.39 is: 263,384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,444.45 : 396,837.76 = 190,779.39 : x
  2. Step 2: Convert to fraction form
    287,444.45/396,837.76 = 190,779.39/x
  3. Step 3: Cross multiply
    287,444.45x = 396,837.76 × 190,779.39
  4. Step 4: Simplify right side
    287,444.45x = 75,708,465,781.77
  5. Step 5: Solve for x
    x = 75,708,465,781.77/287,444.45
  6. Step 6: Final answer
    x = 263,384.69

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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.