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Finding the Fourth Proportional to 708,054.92, 977,127.00 and 385,764.93

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Solution

The fourth proportional to 708,054.92, 977,127.00 and 385,764.93 is: 532,361.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,054.92 : 977,127.00 = 385,764.93 : x
  2. Step 2: Convert to fraction form
    708,054.92/977,127.00 = 385,764.93/x
  3. Step 3: Cross multiply
    708,054.92x = 977,127.00 × 385,764.93
  4. Step 4: Simplify right side
    708,054.92x = 376,941,327,309.49
  5. Step 5: Solve for x
    x = 376,941,327,309.49/708,054.92
  6. Step 6: Final answer
    x = 532,361.71

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Double scale
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Similar ratio
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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.