Home / 636,913.53-878,961.69-365,033.55

Finding the Fourth Proportional to 636,913.53, 878,961.69 and 365,033.55

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Solution

The fourth proportional to 636,913.53, 878,961.69 and 365,033.55 is: 503,758.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,913.53 : 878,961.69 = 365,033.55 : x
  2. Step 2: Convert to fraction form
    636,913.53/878,961.69 = 365,033.55/x
  3. Step 3: Cross multiply
    636,913.53x = 878,961.69 × 365,033.55
  4. Step 4: Simplify right side
    636,913.53x = 320,850,506,014.70
  5. Step 5: Solve for x
    x = 320,850,506,014.70/636,913.53
  6. Step 6: Final answer
    x = 503,758.35

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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.