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Finding the Fourth Proportional to 678,010.04, 935,650.86 and 376,203.32

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Solution

The fourth proportional to 678,010.04, 935,650.86 and 376,203.32 is: 519,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,010.04 : 935,650.86 = 376,203.32 : x
  2. Step 2: Convert to fraction form
    678,010.04/935,650.86 = 376,203.32/x
  3. Step 3: Cross multiply
    678,010.04x = 935,650.86 × 376,203.32
  4. Step 4: Simplify right side
    678,010.04x = 351,994,959,892.86
  5. Step 5: Solve for x
    x = 351,994,959,892.86/678,010.04
  6. Step 6: Final answer
    x = 519,158.92

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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.