Home / 817,586.73-1,128,294.77-455,030.73

Finding the Fourth Proportional to 817,586.73, 1,128,294.77 and 455,030.73

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Solution

The fourth proportional to 817,586.73, 1,128,294.77 and 455,030.73 is: 627,956.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,586.73 : 1,128,294.77 = 455,030.73 : x
  2. Step 2: Convert to fraction form
    817,586.73/1,128,294.77 = 455,030.73/x
  3. Step 3: Cross multiply
    817,586.73x = 1,128,294.77 × 455,030.73
  4. Step 4: Simplify right side
    817,586.73x = 513,408,790,573.13
  5. Step 5: Solve for x
    x = 513,408,790,573.13/817,586.73
  6. Step 6: Final answer
    x = 627,956.36

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Double scale
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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.