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Finding the Fourth Proportional to 539,153.26, 808,303.76 and 269,142.82

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Solution

The fourth proportional to 539,153.26, 808,303.76 and 269,142.82 is: 403,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,153.26 : 808,303.76 = 269,142.82 : x
  2. Step 2: Convert to fraction form
    539,153.26/808,303.76 = 269,142.82/x
  3. Step 3: Cross multiply
    539,153.26x = 808,303.76 × 269,142.82
  4. Step 4: Simplify right side
    539,153.26x = 217,549,152,035.10
  5. Step 5: Solve for x
    x = 217,549,152,035.10/539,153.26
  6. Step 6: Final answer
    x = 403,501.51

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.