Home / 863,305.81-1,190,823.87-557,264.32

Finding the Fourth Proportional to 863,305.81, 1,190,823.87 and 557,264.32

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Solution

The fourth proportional to 863,305.81, 1,190,823.87 and 557,264.32 is: 768,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,305.81 : 1,190,823.87 = 557,264.32 : x
  2. Step 2: Convert to fraction form
    863,305.81/1,190,823.87 = 557,264.32/x
  3. Step 3: Cross multiply
    863,305.81x = 1,190,823.87 × 557,264.32
  4. Step 4: Simplify right side
    863,305.81x = 663,603,654,155.32
  5. Step 5: Solve for x
    x = 663,603,654,155.32/863,305.81
  6. Step 6: Final answer
    x = 768,677.39

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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.