Home / 817,672.32-1,128,376.51-455,096.31

Finding the Fourth Proportional to 817,672.32, 1,128,376.51 and 455,096.31

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Solution

The fourth proportional to 817,672.32, 1,128,376.51 and 455,096.31 is: 628,026.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,672.32 : 1,128,376.51 = 455,096.31 : x
  2. Step 2: Convert to fraction form
    817,672.32/1,128,376.51 = 455,096.31/x
  3. Step 3: Cross multiply
    817,672.32x = 1,128,376.51 × 455,096.31
  4. Step 4: Simplify right side
    817,672.32x = 513,519,980,622.53
  5. Step 5: Solve for x
    x = 513,519,980,622.53/817,672.32
  6. Step 6: Final answer
    x = 628,026.62

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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.