Home / 623,905.43-860,997.86-351,972.47

Finding the Fourth Proportional to 623,905.43, 860,997.86 and 351,972.47

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Solution

The fourth proportional to 623,905.43, 860,997.86 and 351,972.47 is: 485,726.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,905.43 : 860,997.86 = 351,972.47 : x
  2. Step 2: Convert to fraction form
    623,905.43/860,997.86 = 351,972.47/x
  3. Step 3: Cross multiply
    623,905.43x = 860,997.86 × 351,972.47
  4. Step 4: Simplify right side
    623,905.43x = 303,047,537,384.06
  5. Step 5: Solve for x
    x = 303,047,537,384.06/623,905.43
  6. Step 6: Final answer
    x = 485,726.72

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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.