Home / 769,530.24-1,061,931.36-430,001.28

Finding the Fourth Proportional to 769,530.24, 1,061,931.36 and 430,001.28

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Solution

The fourth proportional to 769,530.24, 1,061,931.36 and 430,001.28 is: 593,390.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,530.24 : 1,061,931.36 = 430,001.28 : x
  2. Step 2: Convert to fraction form
    769,530.24/1,061,931.36 = 430,001.28/x
  3. Step 3: Cross multiply
    769,530.24x = 1,061,931.36 × 430,001.28
  4. Step 4: Simplify right side
    769,530.24x = 456,631,844,072.14
  5. Step 5: Solve for x
    x = 456,631,844,072.14/769,530.24
  6. Step 6: Final answer
    x = 593,390.38

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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.