Home / 819,145.96-1,130,284.32-456,490.24

Finding the Fourth Proportional to 819,145.96, 1,130,284.32 and 456,490.24

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Solution

The fourth proportional to 819,145.96, 1,130,284.32 and 456,490.24 is: 629,880.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,145.96 : 1,130,284.32 = 456,490.24 : x
  2. Step 2: Convert to fraction form
    819,145.96/1,130,284.32 = 456,490.24/x
  3. Step 3: Cross multiply
    819,145.96x = 1,130,284.32 × 456,490.24
  4. Step 4: Simplify right side
    819,145.96x = 515,963,760,505.04
  5. Step 5: Solve for x
    x = 515,963,760,505.04/819,145.96
  6. Step 6: Final answer
    x = 629,880.13

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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.