Home / 405,112.61-558,879.75-243,874.23

Finding the Fourth Proportional to 405,112.61, 558,879.75 and 243,874.23

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Solution

The fourth proportional to 405,112.61, 558,879.75 and 243,874.23 is: 336,440.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,112.61 : 558,879.75 = 243,874.23 : x
  2. Step 2: Convert to fraction form
    405,112.61/558,879.75 = 243,874.23/x
  3. Step 3: Cross multiply
    405,112.61x = 558,879.75 × 243,874.23
  4. Step 4: Simplify right side
    405,112.61x = 136,296,368,693.84
  5. Step 5: Solve for x
    x = 136,296,368,693.84/405,112.61
  6. Step 6: Final answer
    x = 336,440.70

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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.