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Finding the Fourth Proportional to 507,539.66, 700,411.66 and 278,092.31

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Solution

The fourth proportional to 507,539.66, 700,411.66 and 278,092.31 is: 383,771.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,539.66 : 700,411.66 = 278,092.31 : x
  2. Step 2: Convert to fraction form
    507,539.66/700,411.66 = 278,092.31/x
  3. Step 3: Cross multiply
    507,539.66x = 700,411.66 × 278,092.31
  4. Step 4: Simplify right side
    507,539.66x = 194,779,092,283.05
  5. Step 5: Solve for x
    x = 194,779,092,283.05/507,539.66
  6. Step 6: Final answer
    x = 383,771.18

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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.