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Finding the Fourth Proportional to 678,077.08, 935,751.90 and 376,276.12

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Solution

The fourth proportional to 678,077.08, 935,751.90 and 376,276.12 is: 519,264.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,077.08 : 935,751.90 = 376,276.12 : x
  2. Step 2: Convert to fraction form
    678,077.08/935,751.90 = 376,276.12/x
  3. Step 3: Cross multiply
    678,077.08x = 935,751.90 × 376,276.12
  4. Step 4: Simplify right side
    678,077.08x = 352,101,094,214.63
  5. Step 5: Solve for x
    x = 352,101,094,214.63/678,077.08
  6. Step 6: Final answer
    x = 519,264.11

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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.