Home / 877,785.38-1,211,442.34-495,836.77

Finding the Fourth Proportional to 877,785.38, 1,211,442.34 and 495,836.77

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Solution

The fourth proportional to 877,785.38, 1,211,442.34 and 495,836.77 is: 684,310.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,785.38 : 1,211,442.34 = 495,836.77 : x
  2. Step 2: Convert to fraction form
    877,785.38/1,211,442.34 = 495,836.77/x
  3. Step 3: Cross multiply
    877,785.38x = 1,211,442.34 × 495,836.77
  4. Step 4: Simplify right side
    877,785.38x = 600,677,650,849.63
  5. Step 5: Solve for x
    x = 600,677,650,849.63/877,785.38
  6. Step 6: Final answer
    x = 684,310.38

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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.