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Finding the Fourth Proportional to 528,625.08, 729,503.34 and 286,907.66

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Solution

The fourth proportional to 528,625.08, 729,503.34 and 286,907.66 is: 395,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,625.08 : 729,503.34 = 286,907.66 : x
  2. Step 2: Convert to fraction form
    528,625.08/729,503.34 = 286,907.66/x
  3. Step 3: Cross multiply
    528,625.08x = 729,503.34 × 286,907.66
  4. Step 4: Simplify right side
    528,625.08x = 209,300,096,241.58
  5. Step 5: Solve for x
    x = 209,300,096,241.58/528,625.08
  6. Step 6: Final answer
    x = 395,932.97

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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.