Home / 860,172.36-1,187,078.36-478,205.52

Finding the Fourth Proportional to 860,172.36, 1,187,078.36 and 478,205.52

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Solution

The fourth proportional to 860,172.36, 1,187,078.36 and 478,205.52 is: 659,946.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,172.36 : 1,187,078.36 = 478,205.52 : x
  2. Step 2: Convert to fraction form
    860,172.36/1,187,078.36 = 478,205.52/x
  3. Step 3: Cross multiply
    860,172.36x = 1,187,078.36 × 478,205.52
  4. Step 4: Simplify right side
    860,172.36x = 567,667,424,424.55
  5. Step 5: Solve for x
    x = 567,667,424,424.55/860,172.36
  6. Step 6: Final answer
    x = 659,946.14

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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.