Home / 280,754.91-387,547.34-190,577.61

Finding the Fourth Proportional to 280,754.91, 387,547.34 and 190,577.61

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Solution

The fourth proportional to 280,754.91, 387,547.34 and 190,577.61 is: 263,068.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,754.91 : 387,547.34 = 190,577.61 : x
  2. Step 2: Convert to fraction form
    280,754.91/387,547.34 = 190,577.61/x
  3. Step 3: Cross multiply
    280,754.91x = 387,547.34 × 190,577.61
  4. Step 4: Simplify right side
    280,754.91x = 73,857,844,866.17
  5. Step 5: Solve for x
    x = 73,857,844,866.17/280,754.91
  6. Step 6: Final answer
    x = 263,068.76

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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.