Home / 817,664.46-1,128,365.64-455,088.24

Finding the Fourth Proportional to 817,664.46, 1,128,365.64 and 455,088.24

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Solution

The fourth proportional to 817,664.46, 1,128,365.64 and 455,088.24 is: 628,015.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,664.46 : 1,128,365.64 = 455,088.24 : x
  2. Step 2: Convert to fraction form
    817,664.46/1,128,365.64 = 455,088.24/x
  3. Step 3: Cross multiply
    817,664.46x = 1,128,365.64 × 455,088.24
  4. Step 4: Simplify right side
    817,664.46x = 513,505,933,184.07
  5. Step 5: Solve for x
    x = 513,505,933,184.07/817,664.46
  6. Step 6: Final answer
    x = 628,015.47

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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.