Home / 650,621.20-975,640.20-251,129.20

Finding the Fourth Proportional to 650,621.20, 975,640.20 and 251,129.20

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Solution

The fourth proportional to 650,621.20, 975,640.20 and 251,129.20 is: 376,581.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,621.20 : 975,640.20 = 251,129.20 : x
  2. Step 2: Convert to fraction form
    650,621.20/975,640.20 = 251,129.20/x
  3. Step 3: Cross multiply
    650,621.20x = 975,640.20 × 251,129.20
  4. Step 4: Simplify right side
    650,621.20x = 245,011,742,913.84
  5. Step 5: Solve for x
    x = 245,011,742,913.84/650,621.20
  6. Step 6: Final answer
    x = 376,581.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.