Home / 286,844.40-430,384.32-126,835.92

Finding the Fourth Proportional to 286,844.40, 430,384.32 and 126,835.92

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Solution

The fourth proportional to 286,844.40, 430,384.32 and 126,835.92 is: 190,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,844.40 : 430,384.32 = 126,835.92 : x
  2. Step 2: Convert to fraction form
    286,844.40/430,384.32 = 126,835.92/x
  3. Step 3: Cross multiply
    286,844.40x = 430,384.32 × 126,835.92
  4. Step 4: Simplify right side
    286,844.40x = 54,588,191,180.77
  5. Step 5: Solve for x
    x = 54,588,191,180.77/286,844.40
  6. Step 6: Final answer
    x = 190,305.93

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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.