Home / 887,413.36-1,224,630.48-485,005.36

Finding the Fourth Proportional to 887,413.36, 1,224,630.48 and 485,005.36

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Solution

The fourth proportional to 887,413.36, 1,224,630.48 and 485,005.36 is: 669,307.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,413.36 : 1,224,630.48 = 485,005.36 : x
  2. Step 2: Convert to fraction form
    887,413.36/1,224,630.48 = 485,005.36/x
  3. Step 3: Cross multiply
    887,413.36x = 1,224,630.48 × 485,005.36
  4. Step 4: Simplify right side
    887,413.36x = 593,952,346,819.37
  5. Step 5: Solve for x
    x = 593,952,346,819.37/887,413.36
  6. Step 6: Final answer
    x = 669,307.42

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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.