Home / 646,127.43-891,739.53-370,592.77

Finding the Fourth Proportional to 646,127.43, 891,739.53 and 370,592.77

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Solution

The fourth proportional to 646,127.43, 891,739.53 and 370,592.77 is: 511,466.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,127.43 : 891,739.53 = 370,592.77 : x
  2. Step 2: Convert to fraction form
    646,127.43/891,739.53 = 370,592.77/x
  3. Step 3: Cross multiply
    646,127.43x = 891,739.53 × 370,592.77
  4. Step 4: Simplify right side
    646,127.43x = 330,472,221,983.86
  5. Step 5: Solve for x
    x = 330,472,221,983.86/646,127.43
  6. Step 6: Final answer
    x = 511,466.01

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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.