Home / 638,841.35-881,599.20-366,926.78

Finding the Fourth Proportional to 638,841.35, 881,599.20 and 366,926.78

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Solution

The fourth proportional to 638,841.35, 881,599.20 and 366,926.78 is: 506,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,841.35 : 881,599.20 = 366,926.78 : x
  2. Step 2: Convert to fraction form
    638,841.35/881,599.20 = 366,926.78/x
  3. Step 3: Cross multiply
    638,841.35x = 881,599.20 × 366,926.78
  4. Step 4: Simplify right side
    638,841.35x = 323,482,355,706.58
  5. Step 5: Solve for x
    x = 323,482,355,706.58/638,841.35
  6. Step 6: Final answer
    x = 506,357.89

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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.