Home / 320,345.91-442,004.04-191,259.32

Finding the Fourth Proportional to 320,345.91, 442,004.04 and 191,259.32

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Solution

The fourth proportional to 320,345.91, 442,004.04 and 191,259.32 is: 263,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,345.91 : 442,004.04 = 191,259.32 : x
  2. Step 2: Convert to fraction form
    320,345.91/442,004.04 = 191,259.32/x
  3. Step 3: Cross multiply
    320,345.91x = 442,004.04 × 191,259.32
  4. Step 4: Simplify right side
    320,345.91x = 84,537,389,917.63
  5. Step 5: Solve for x
    x = 84,537,389,917.63/320,345.91
  6. Step 6: Final answer
    x = 263,894.08

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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.