Home / 945,877.61-1,305,300.35-516,165.05

Finding the Fourth Proportional to 945,877.61, 1,305,300.35 and 516,165.05

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Solution

The fourth proportional to 945,877.61, 1,305,300.35 and 516,165.05 is: 712,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,877.61 : 1,305,300.35 = 516,165.05 : x
  2. Step 2: Convert to fraction form
    945,877.61/1,305,300.35 = 516,165.05/x
  3. Step 3: Cross multiply
    945,877.61x = 1,305,300.35 × 516,165.05
  4. Step 4: Simplify right side
    945,877.61x = 673,750,420,422.77
  5. Step 5: Solve for x
    x = 673,750,420,422.77/945,877.61
  6. Step 6: Final answer
    x = 712,301.90

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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.