Home / 641,300.52-884,219.58-518,921.40

Finding the Fourth Proportional to 641,300.52, 884,219.58 and 518,921.40

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Solution

The fourth proportional to 641,300.52, 884,219.58 and 518,921.40 is: 715,484.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,300.52 : 884,219.58 = 518,921.40 : x
  2. Step 2: Convert to fraction form
    641,300.52/884,219.58 = 518,921.40/x
  3. Step 3: Cross multiply
    641,300.52x = 884,219.58 × 518,921.40
  4. Step 4: Simplify right side
    641,300.52x = 458,840,462,361.01
  5. Step 5: Solve for x
    x = 458,840,462,361.01/641,300.52
  6. Step 6: Final answer
    x = 715,484.31

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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.