Home / 817,726.16-1,128,453.48-455,144.24

Finding the Fourth Proportional to 817,726.16, 1,128,453.48 and 455,144.24

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Solution

The fourth proportional to 817,726.16, 1,128,453.48 and 455,144.24 is: 628,094.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,726.16 : 1,128,453.48 = 455,144.24 : x
  2. Step 2: Convert to fraction form
    817,726.16/1,128,453.48 = 455,144.24/x
  3. Step 3: Cross multiply
    817,726.16x = 1,128,453.48 × 455,144.24
  4. Step 4: Simplify right side
    817,726.16x = 513,609,101,529.96
  5. Step 5: Solve for x
    x = 513,609,101,529.96/817,726.16
  6. Step 6: Final answer
    x = 628,094.25

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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.