Home / 840,699.24-1,160,190.51-478,175.23

Finding the Fourth Proportional to 840,699.24, 1,160,190.51 and 478,175.23

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Solution

The fourth proportional to 840,699.24, 1,160,190.51 and 478,175.23 is: 659,896.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,699.24 : 1,160,190.51 = 478,175.23 : x
  2. Step 2: Convert to fraction form
    840,699.24/1,160,190.51 = 478,175.23/x
  3. Step 3: Cross multiply
    840,699.24x = 1,160,190.51 × 478,175.23
  4. Step 4: Simplify right side
    840,699.24x = 554,774,363,620.15
  5. Step 5: Solve for x
    x = 554,774,363,620.15/840,699.24
  6. Step 6: Final answer
    x = 659,896.36

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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.