Home / 484,116.30-668,033.75-280,126.62

Finding the Fourth Proportional to 484,116.30, 668,033.75 and 280,126.62

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Solution

The fourth proportional to 484,116.30, 668,033.75 and 280,126.62 is: 386,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,116.30 : 668,033.75 = 280,126.62 : x
  2. Step 2: Convert to fraction form
    484,116.30/668,033.75 = 280,126.62/x
  3. Step 3: Cross multiply
    484,116.30x = 668,033.75 × 280,126.62
  4. Step 4: Simplify right side
    484,116.30x = 187,134,037,133.74
  5. Step 5: Solve for x
    x = 187,134,037,133.74/484,116.30
  6. Step 6: Final answer
    x = 386,547.69

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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.