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Finding the Fourth Proportional to 678,550.10, 935,608.03 and 506,168.82

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Solution

The fourth proportional to 678,550.10, 935,608.03 and 506,168.82 is: 697,922.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,550.10 : 935,608.03 = 506,168.82 : x
  2. Step 2: Convert to fraction form
    678,550.10/935,608.03 = 506,168.82/x
  3. Step 3: Cross multiply
    678,550.10x = 935,608.03 × 506,168.82
  4. Step 4: Simplify right side
    678,550.10x = 473,575,611,262.20
  5. Step 5: Solve for x
    x = 473,575,611,262.20/678,550.10
  6. Step 6: Final answer
    x = 697,922.84

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Double scale
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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.