Home / 749,245.90-1,033,938.35-409,706.86

Finding the Fourth Proportional to 749,245.90, 1,033,938.35 and 409,706.86

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Solution

The fourth proportional to 749,245.90, 1,033,938.35 and 409,706.86 is: 565,383.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,245.90 : 1,033,938.35 = 409,706.86 : x
  2. Step 2: Convert to fraction form
    749,245.90/1,033,938.35 = 409,706.86/x
  3. Step 3: Cross multiply
    749,245.90x = 1,033,938.35 × 409,706.86
  4. Step 4: Simplify right side
    749,245.90x = 423,611,632,501.44
  5. Step 5: Solve for x
    x = 423,611,632,501.44/749,245.90
  6. Step 6: Final answer
    x = 565,383.99

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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.