Home / 286,933.80-430,415.16-109,454.76

Finding the Fourth Proportional to 286,933.80, 430,415.16 and 109,454.76

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Solution

The fourth proportional to 286,933.80, 430,415.16 and 109,454.76 is: 164,187.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,933.80 : 430,415.16 = 109,454.76 : x
  2. Step 2: Convert to fraction form
    286,933.80/430,415.16 = 109,454.76/x
  3. Step 3: Cross multiply
    286,933.80x = 430,415.16 × 109,454.76
  4. Step 4: Simplify right side
    286,933.80x = 47,110,988,038.16
  5. Step 5: Solve for x
    x = 47,110,988,038.16/286,933.80
  6. Step 6: Final answer
    x = 164,187.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.