Home / 817,736.16-1,128,475.77-455,152.20

Finding the Fourth Proportional to 817,736.16, 1,128,475.77 and 455,152.20

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Solution

The fourth proportional to 817,736.16, 1,128,475.77 and 455,152.20 is: 628,109.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,736.16 : 1,128,475.77 = 455,152.20 : x
  2. Step 2: Convert to fraction form
    817,736.16/1,128,475.77 = 455,152.20/x
  3. Step 3: Cross multiply
    817,736.16x = 1,128,475.77 × 455,152.20
  4. Step 4: Simplify right side
    817,736.16x = 513,628,229,362.19
  5. Step 5: Solve for x
    x = 513,628,229,362.19/817,736.16
  6. Step 6: Final answer
    x = 628,109.96

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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.