Home / 877,784.88-1,211,441.65-495,836.27

Finding the Fourth Proportional to 877,784.88, 1,211,441.65 and 495,836.27

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Solution

The fourth proportional to 877,784.88, 1,211,441.65 and 495,836.27 is: 684,309.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,784.88 : 1,211,441.65 = 495,836.27 : x
  2. Step 2: Convert to fraction form
    877,784.88/1,211,441.65 = 495,836.27/x
  3. Step 3: Cross multiply
    877,784.88x = 1,211,441.65 × 495,836.27
  4. Step 4: Simplify right side
    877,784.88x = 600,676,703,001.44
  5. Step 5: Solve for x
    x = 600,676,703,001.44/877,784.88
  6. Step 6: Final answer
    x = 684,309.69

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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.