Home / 286,690.08-395,597.94-157,607.30

Finding the Fourth Proportional to 286,690.08, 395,597.94 and 157,607.30

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Solution

The fourth proportional to 286,690.08, 395,597.94 and 157,607.30 is: 217,479.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,690.08 : 395,597.94 = 157,607.30 : x
  2. Step 2: Convert to fraction form
    286,690.08/395,597.94 = 157,607.30/x
  3. Step 3: Cross multiply
    286,690.08x = 395,597.94 × 157,607.30
  4. Step 4: Simplify right side
    286,690.08x = 62,349,123,208.96
  5. Step 5: Solve for x
    x = 62,349,123,208.96/286,690.08
  6. Step 6: Final answer
    x = 217,479.18

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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.