Home / 858,113.40-1,184,205.78-476,146.56

Finding the Fourth Proportional to 858,113.40, 1,184,205.78 and 476,146.56

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Solution

The fourth proportional to 858,113.40, 1,184,205.78 and 476,146.56 is: 657,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,113.40 : 1,184,205.78 = 476,146.56 : x
  2. Step 2: Convert to fraction form
    858,113.40/1,184,205.78 = 476,146.56/x
  3. Step 3: Cross multiply
    858,113.40x = 1,184,205.78 × 476,146.56
  4. Step 4: Simplify right side
    858,113.40x = 563,855,508,479.12
  5. Step 5: Solve for x
    x = 563,855,508,479.12/858,113.40
  6. Step 6: Final answer
    x = 657,087.41

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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.