Home / 418,235.52-630,504.46-391,175.04

Finding the Fourth Proportional to 418,235.52, 630,504.46 and 391,175.04

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Solution

The fourth proportional to 418,235.52, 630,504.46 and 391,175.04 is: 589,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,235.52 : 630,504.46 = 391,175.04 : x
  2. Step 2: Convert to fraction form
    418,235.52/630,504.46 = 391,175.04/x
  3. Step 3: Cross multiply
    418,235.52x = 630,504.46 × 391,175.04
  4. Step 4: Simplify right side
    418,235.52x = 246,637,607,360.68
  5. Step 5: Solve for x
    x = 246,637,607,360.68/418,235.52
  6. Step 6: Final answer
    x = 589,709.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.