Home / 639,263.36-959,051.24-212,798.36

Finding the Fourth Proportional to 639,263.36, 959,051.24 and 212,798.36

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Solution

The fourth proportional to 639,263.36, 959,051.24 and 212,798.36 is: 319,249.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,263.36 : 959,051.24 = 212,798.36 : x
  2. Step 2: Convert to fraction form
    639,263.36/959,051.24 = 212,798.36/x
  3. Step 3: Cross multiply
    639,263.36x = 959,051.24 × 212,798.36
  4. Step 4: Simplify right side
    639,263.36x = 204,084,533,957.59
  5. Step 5: Solve for x
    x = 204,084,533,957.59/639,263.36
  6. Step 6: Final answer
    x = 319,249.54

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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.