Home / 320,686.54-442,477.13-191,605.63

Finding the Fourth Proportional to 320,686.54, 442,477.13 and 191,605.63

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Solution

The fourth proportional to 320,686.54, 442,477.13 and 191,605.63 is: 264,373.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,686.54 : 442,477.13 = 191,605.63 : x
  2. Step 2: Convert to fraction form
    320,686.54/442,477.13 = 191,605.63/x
  3. Step 3: Cross multiply
    320,686.54x = 442,477.13 × 191,605.63
  4. Step 4: Simplify right side
    320,686.54x = 84,781,108,627.06
  5. Step 5: Solve for x
    x = 84,781,108,627.06/320,686.54
  6. Step 6: Final answer
    x = 264,373.77

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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.