Home / 840,909.50-1,261,853.81-354,561.15

Finding the Fourth Proportional to 840,909.50, 1,261,853.81 and 354,561.15

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Solution

The fourth proportional to 840,909.50, 1,261,853.81 and 354,561.15 is: 532,048.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,909.50 : 1,261,853.81 = 354,561.15 : x
  2. Step 2: Convert to fraction form
    840,909.50/1,261,853.81 = 354,561.15/x
  3. Step 3: Cross multiply
    840,909.50x = 1,261,853.81 × 354,561.15
  4. Step 4: Simplify right side
    840,909.50x = 447,404,331,500.72
  5. Step 5: Solve for x
    x = 447,404,331,500.72/840,909.50
  6. Step 6: Final answer
    x = 532,048.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.