Home / 749,170.78-1,033,859.10-409,638.76

Finding the Fourth Proportional to 749,170.78, 1,033,859.10 and 409,638.76

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Solution

The fourth proportional to 749,170.78, 1,033,859.10 and 409,638.76 is: 565,303.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,170.78 : 1,033,859.10 = 409,638.76 : x
  2. Step 2: Convert to fraction form
    749,170.78/1,033,859.10 = 409,638.76/x
  3. Step 3: Cross multiply
    749,170.78x = 1,033,859.10 × 409,638.76
  4. Step 4: Simplify right side
    749,170.78x = 423,508,759,738.72
  5. Step 5: Solve for x
    x = 423,508,759,738.72/749,170.78
  6. Step 6: Final answer
    x = 565,303.36

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Double scale
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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.