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Finding the Fourth Proportional to 479,347.59, 661,513.52 and 264,501.49

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Solution

The fourth proportional to 479,347.59, 661,513.52 and 264,501.49 is: 365,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,347.59 : 661,513.52 = 264,501.49 : x
  2. Step 2: Convert to fraction form
    479,347.59/661,513.52 = 264,501.49/x
  3. Step 3: Cross multiply
    479,347.59x = 661,513.52 × 264,501.49
  4. Step 4: Simplify right side
    479,347.59x = 174,971,311,695.15
  5. Step 5: Solve for x
    x = 174,971,311,695.15/479,347.59
  6. Step 6: Final answer
    x = 365,019.70

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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.