Home / 886,281.63-1,329,143.60-287,103.77

Finding the Fourth Proportional to 886,281.63, 1,329,143.60 and 287,103.77

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Solution

The fourth proportional to 886,281.63, 1,329,143.60 and 287,103.77 is: 430,565.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,281.63 : 1,329,143.60 = 287,103.77 : x
  2. Step 2: Convert to fraction form
    886,281.63/1,329,143.60 = 287,103.77/x
  3. Step 3: Cross multiply
    886,281.63x = 1,329,143.60 × 287,103.77
  4. Step 4: Simplify right side
    886,281.63x = 381,602,138,431.37
  5. Step 5: Solve for x
    x = 381,602,138,431.37/886,281.63
  6. Step 6: Final answer
    x = 430,565.33

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Double scale
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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.