Home / 665,990.17-919,047.77-364,177.69

Finding the Fourth Proportional to 665,990.17, 919,047.77 and 364,177.69

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Solution

The fourth proportional to 665,990.17, 919,047.77 and 364,177.69 is: 502,555.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,990.17 : 919,047.77 = 364,177.69 : x
  2. Step 2: Convert to fraction form
    665,990.17/919,047.77 = 364,177.69/x
  3. Step 3: Cross multiply
    665,990.17x = 919,047.77 × 364,177.69
  4. Step 4: Simplify right side
    665,990.17x = 334,696,691,125.41
  5. Step 5: Solve for x
    x = 334,696,691,125.41/665,990.17
  6. Step 6: Final answer
    x = 502,555.00

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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.