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Finding the Fourth Proportional to 479,415.55, 661,595.40 and 264,561.82

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Solution

The fourth proportional to 479,415.55, 661,595.40 and 264,561.82 is: 365,096.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,415.55 : 661,595.40 = 264,561.82 : x
  2. Step 2: Convert to fraction form
    479,415.55/661,595.40 = 264,561.82/x
  3. Step 3: Cross multiply
    479,415.55x = 661,595.40 × 264,561.82
  4. Step 4: Simplify right side
    479,415.55x = 175,032,883,127.63
  5. Step 5: Solve for x
    x = 175,032,883,127.63/479,415.55
  6. Step 6: Final answer
    x = 365,096.38

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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.