Home / 939,857.32-1,296,968.20-510,128.20

Finding the Fourth Proportional to 939,857.32, 1,296,968.20 and 510,128.20

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Solution

The fourth proportional to 939,857.32, 1,296,968.20 and 510,128.20 is: 703,957.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,857.32 : 1,296,968.20 = 510,128.20 : x
  2. Step 2: Convert to fraction form
    939,857.32/1,296,968.20 = 510,128.20/x
  3. Step 3: Cross multiply
    939,857.32x = 1,296,968.20 × 510,128.20
  4. Step 4: Simplify right side
    939,857.32x = 661,620,053,323.24
  5. Step 5: Solve for x
    x = 661,620,053,323.24/939,857.32
  6. Step 6: Final answer
    x = 703,957.97

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Double scale
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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.