Home / 853,603.20-1,280,404.80-785,174.40

Finding the Fourth Proportional to 853,603.20, 1,280,404.80 and 785,174.40

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Solution

The fourth proportional to 853,603.20, 1,280,404.80 and 785,174.40 is: 1,177,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,603.20 : 1,280,404.80 = 785,174.40 : x
  2. Step 2: Convert to fraction form
    853,603.20/1,280,404.80 = 785,174.40/x
  3. Step 3: Cross multiply
    853,603.20x = 1,280,404.80 × 785,174.40
  4. Step 4: Simplify right side
    853,603.20x = 1,005,341,070,597.12
  5. Step 5: Solve for x
    x = 1,005,341,070,597.12/853,603.20
  6. Step 6: Final answer
    x = 1,177,761.60

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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.