Home / 860,170.36-1,187,075.60-478,203.52

Finding the Fourth Proportional to 860,170.36, 1,187,075.60 and 478,203.52

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Solution

The fourth proportional to 860,170.36, 1,187,075.60 and 478,203.52 is: 659,943.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,170.36 : 1,187,075.60 = 478,203.52 : x
  2. Step 2: Convert to fraction form
    860,170.36/1,187,075.60 = 478,203.52/x
  3. Step 3: Cross multiply
    860,170.36x = 1,187,075.60 × 478,203.52
  4. Step 4: Simplify right side
    860,170.36x = 567,663,730,426.11
  5. Step 5: Solve for x
    x = 567,663,730,426.11/860,170.36
  6. Step 6: Final answer
    x = 659,943.37

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Double scale
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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.