Home / 369,259.83-509,085.03-276,986.86

Finding the Fourth Proportional to 369,259.83, 509,085.03 and 276,986.86

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Solution

The fourth proportional to 369,259.83, 509,085.03 and 276,986.86 is: 381,871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,259.83 : 509,085.03 = 276,986.86 : x
  2. Step 2: Convert to fraction form
    369,259.83/509,085.03 = 276,986.86/x
  3. Step 3: Cross multiply
    369,259.83x = 509,085.03 × 276,986.86
  4. Step 4: Simplify right side
    369,259.83x = 141,009,863,698.69
  5. Step 5: Solve for x
    x = 141,009,863,698.69/369,259.83
  6. Step 6: Final answer
    x = 381,871.66

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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.