Home / 621,005.16-857,077.86-349,095.44

Finding the Fourth Proportional to 621,005.16, 857,077.86 and 349,095.44

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Solution

The fourth proportional to 621,005.16, 857,077.86 and 349,095.44 is: 481,802.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,005.16 : 857,077.86 = 349,095.44 : x
  2. Step 2: Convert to fraction form
    621,005.16/857,077.86 = 349,095.44/x
  3. Step 3: Cross multiply
    621,005.16x = 857,077.86 × 349,095.44
  4. Step 4: Simplify right side
    621,005.16x = 299,201,972,650.96
  5. Step 5: Solve for x
    x = 299,201,972,650.96/621,005.16
  6. Step 6: Final answer
    x = 481,802.72

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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.