Home / 666,136.27-919,266.45-375,746.86

Finding the Fourth Proportional to 666,136.27, 919,266.45 and 375,746.86

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Solution

The fourth proportional to 666,136.27, 919,266.45 and 375,746.86 is: 518,529.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,136.27 : 919,266.45 = 375,746.86 : x
  2. Step 2: Convert to fraction form
    666,136.27/919,266.45 = 375,746.86/x
  3. Step 3: Cross multiply
    666,136.27x = 919,266.45 × 375,746.86
  4. Step 4: Simplify right side
    666,136.27x = 345,411,482,090.85
  5. Step 5: Solve for x
    x = 345,411,482,090.85/666,136.27
  6. Step 6: Final answer
    x = 518,529.76

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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.