Home / 923,963.40-1,275,066.90-521,555.40

Finding the Fourth Proportional to 923,963.40, 1,275,066.90 and 521,555.40

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Solution

The fourth proportional to 923,963.40, 1,275,066.90 and 521,555.40 is: 719,744.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,963.40 : 1,275,066.90 = 521,555.40 : x
  2. Step 2: Convert to fraction form
    923,963.40/1,275,066.90 = 521,555.40/x
  3. Step 3: Cross multiply
    923,963.40x = 1,275,066.90 × 521,555.40
  4. Step 4: Simplify right side
    923,963.40x = 665,018,027,056.26
  5. Step 5: Solve for x
    x = 665,018,027,056.26/923,963.40
  6. Step 6: Final answer
    x = 719,744.99

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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.