Home / 786,986.70-1,086,009.57-464,801.10

Finding the Fourth Proportional to 786,986.70, 1,086,009.57 and 464,801.10

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Solution

The fourth proportional to 786,986.70, 1,086,009.57 and 464,801.10 is: 641,406.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,986.70 : 1,086,009.57 = 464,801.10 : x
  2. Step 2: Convert to fraction form
    786,986.70/1,086,009.57 = 464,801.10/x
  3. Step 3: Cross multiply
    786,986.70x = 1,086,009.57 × 464,801.10
  4. Step 4: Simplify right side
    786,986.70x = 504,778,442,746.53
  5. Step 5: Solve for x
    x = 504,778,442,746.53/786,986.70
  6. Step 6: Final answer
    x = 641,406.57

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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.