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Finding the Fourth Proportional to 678,066.08, 935,774.90 and 376,260.08

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Solution

The fourth proportional to 678,066.08, 935,774.90 and 376,260.08 is: 519,263.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,066.08 : 935,774.90 = 376,260.08 : x
  2. Step 2: Convert to fraction form
    678,066.08/935,774.90 = 376,260.08/x
  3. Step 3: Cross multiply
    678,066.08x = 935,774.90 × 376,260.08
  4. Step 4: Simplify right side
    678,066.08x = 352,094,738,735.99
  5. Step 5: Solve for x
    x = 352,094,738,735.99/678,066.08
  6. Step 6: Final answer
    x = 519,263.16

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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.