Home / 688,055.60-949,516.68-386,249.36

Finding the Fourth Proportional to 688,055.60, 949,516.68 and 386,249.36

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Solution

The fourth proportional to 688,055.60, 949,516.68 and 386,249.36 is: 533,024.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,055.60 : 949,516.68 = 386,249.36 : x
  2. Step 2: Convert to fraction form
    688,055.60/949,516.68 = 386,249.36/x
  3. Step 3: Cross multiply
    688,055.60x = 949,516.68 × 386,249.36
  4. Step 4: Simplify right side
    688,055.60x = 366,750,209,959.33
  5. Step 5: Solve for x
    x = 366,750,209,959.33/688,055.60
  6. Step 6: Final answer
    x = 533,024.09

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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.