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Finding the Fourth Proportional to 555,814.19, 767,024.90 and 301,165.38

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Solution

The fourth proportional to 555,814.19, 767,024.90 and 301,165.38 is: 415,608.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,814.19 : 767,024.90 = 301,165.38 : x
  2. Step 2: Convert to fraction form
    555,814.19/767,024.90 = 301,165.38/x
  3. Step 3: Cross multiply
    555,814.19x = 767,024.90 × 301,165.38
  4. Step 4: Simplify right side
    555,814.19x = 231,001,343,972.14
  5. Step 5: Solve for x
    x = 231,001,343,972.14/555,814.19
  6. Step 6: Final answer
    x = 415,608.94

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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.