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Finding the Fourth Proportional to 555,810.35, 767,018.42 and 301,161.53

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Solution

The fourth proportional to 555,810.35, 767,018.42 and 301,161.53 is: 415,602.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,810.35 : 767,018.42 = 301,161.53 : x
  2. Step 2: Convert to fraction form
    555,810.35/767,018.42 = 301,161.53/x
  3. Step 3: Cross multiply
    555,810.35x = 767,018.42 × 301,161.53
  4. Step 4: Simplify right side
    555,810.35x = 230,996,435,564.48
  5. Step 5: Solve for x
    x = 230,996,435,564.48/555,810.35
  6. Step 6: Final answer
    x = 415,602.98

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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.