Home / 831,978.24-1,148,129.12-450,004.11

Finding the Fourth Proportional to 831,978.24, 1,148,129.12 and 450,004.11

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Solution

The fourth proportional to 831,978.24, 1,148,129.12 and 450,004.11 is: 621,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,978.24 : 1,148,129.12 = 450,004.11 : x
  2. Step 2: Convert to fraction form
    831,978.24/1,148,129.12 = 450,004.11/x
  3. Step 3: Cross multiply
    831,978.24x = 1,148,129.12 × 450,004.11
  4. Step 4: Simplify right side
    831,978.24x = 516,662,820,560.66
  5. Step 5: Solve for x
    x = 516,662,820,560.66/831,978.24
  6. Step 6: Final answer
    x = 621,005.21

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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.