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Finding the Fourth Proportional to 675,308.18, 931,013.32 and 433,170.42

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Solution

The fourth proportional to 675,308.18, 931,013.32 and 433,170.42 is: 597,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,308.18 : 931,013.32 = 433,170.42 : x
  2. Step 2: Convert to fraction form
    675,308.18/931,013.32 = 433,170.42/x
  3. Step 3: Cross multiply
    675,308.18x = 931,013.32 × 433,170.42
  4. Step 4: Simplify right side
    675,308.18x = 403,287,430,849.99
  5. Step 5: Solve for x
    x = 403,287,430,849.99/675,308.18
  6. Step 6: Final answer
    x = 597,190.21

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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.