Home / 666,111.03-919,177.68-375,706.59

Finding the Fourth Proportional to 666,111.03, 919,177.68 and 375,706.59

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Solution

The fourth proportional to 666,111.03, 919,177.68 and 375,706.59 is: 518,443.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,111.03 : 919,177.68 = 375,706.59 : x
  2. Step 2: Convert to fraction form
    666,111.03/919,177.68 = 375,706.59/x
  3. Step 3: Cross multiply
    666,111.03x = 919,177.68 × 375,706.59
  4. Step 4: Simplify right side
    666,111.03x = 345,341,111,756.91
  5. Step 5: Solve for x
    x = 345,341,111,756.91/666,111.03
  6. Step 6: Final answer
    x = 518,443.77

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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.