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Finding the Fourth Proportional to 707,956.54, 976,968.72 and 385,670.50

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Solution

The fourth proportional to 707,956.54, 976,968.72 and 385,670.50 is: 532,219.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,956.54 : 976,968.72 = 385,670.50 : x
  2. Step 2: Convert to fraction form
    707,956.54/976,968.72 = 385,670.50/x
  3. Step 3: Cross multiply
    707,956.54x = 976,968.72 × 385,670.50
  4. Step 4: Simplify right side
    707,956.54x = 376,788,014,726.76
  5. Step 5: Solve for x
    x = 376,788,014,726.76/707,956.54
  6. Step 6: Final answer
    x = 532,219.13

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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.