Home / 817,674.89-1,128,380.01-455,098.89

Finding the Fourth Proportional to 817,674.89, 1,128,380.01 and 455,098.89

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Solution

The fourth proportional to 817,674.89, 1,128,380.01 and 455,098.89 is: 628,030.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,674.89 : 1,128,380.01 = 455,098.89 : x
  2. Step 2: Convert to fraction form
    817,674.89/1,128,380.01 = 455,098.89/x
  3. Step 3: Cross multiply
    817,674.89x = 1,128,380.01 × 455,098.89
  4. Step 4: Simplify right side
    817,674.89x = 513,524,490,049.19
  5. Step 5: Solve for x
    x = 513,524,490,049.19/817,674.89
  6. Step 6: Final answer
    x = 628,030.16

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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.