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Finding the Fourth Proportional to 616,562.40, 923,531.40 and 511,586.40

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Solution

The fourth proportional to 616,562.40, 923,531.40 and 511,586.40 is: 766,290.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,562.40 : 923,531.40 = 511,586.40 : x
  2. Step 2: Convert to fraction form
    616,562.40/923,531.40 = 511,586.40/x
  3. Step 3: Cross multiply
    616,562.40x = 923,531.40 × 511,586.40
  4. Step 4: Simplify right side
    616,562.40x = 472,466,104,212.96
  5. Step 5: Solve for x
    x = 472,466,104,212.96/616,562.40
  6. Step 6: Final answer
    x = 766,290.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.