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Finding the Fourth Proportional to 886,293.72, 1,223,078.88 and 483,885.72

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Solution

The fourth proportional to 886,293.72, 1,223,078.88 and 483,885.72 is: 667,758.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,293.72 : 1,223,078.88 = 483,885.72 : x
  2. Step 2: Convert to fraction form
    886,293.72/1,223,078.88 = 483,885.72/x
  3. Step 3: Cross multiply
    886,293.72x = 1,223,078.88 × 483,885.72
  4. Step 4: Simplify right side
    886,293.72x = 591,830,404,465.59
  5. Step 5: Solve for x
    x = 591,830,404,465.59/886,293.72
  6. Step 6: Final answer
    x = 667,758.77

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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.