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Finding the Fourth Proportional to 528,333.85, 729,100.33 and 286,616.41

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Solution

The fourth proportional to 528,333.85, 729,100.33 and 286,616.41 is: 395,530.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,333.85 : 729,100.33 = 286,616.41 : x
  2. Step 2: Convert to fraction form
    528,333.85/729,100.33 = 286,616.41/x
  3. Step 3: Cross multiply
    528,333.85x = 729,100.33 × 286,616.41
  4. Step 4: Simplify right side
    528,333.85x = 208,972,119,114.42
  5. Step 5: Solve for x
    x = 208,972,119,114.42/528,333.85
  6. Step 6: Final answer
    x = 395,530.44

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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.