Home / 909,099.88-1,254,279.78-527,050.40

Finding the Fourth Proportional to 909,099.88, 1,254,279.78 and 527,050.40

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Solution

The fourth proportional to 909,099.88, 1,254,279.78 and 527,050.40 is: 727,168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,099.88 : 1,254,279.78 = 527,050.40 : x
  2. Step 2: Convert to fraction form
    909,099.88/1,254,279.78 = 527,050.40/x
  3. Step 3: Cross multiply
    909,099.88x = 1,254,279.78 × 527,050.40
  4. Step 4: Simplify right side
    909,099.88x = 661,068,659,760.91
  5. Step 5: Solve for x
    x = 661,068,659,760.91/909,099.88
  6. Step 6: Final answer
    x = 727,168.35

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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.