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Finding the Fourth Proportional to 529,556.67, 731,140.13 and 406,830.48

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Solution

The fourth proportional to 529,556.67, 731,140.13 and 406,830.48 is: 561,696.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,556.67 : 731,140.13 = 406,830.48 : x
  2. Step 2: Convert to fraction form
    529,556.67/731,140.13 = 406,830.48/x
  3. Step 3: Cross multiply
    529,556.67x = 731,140.13 × 406,830.48
  4. Step 4: Simplify right side
    529,556.67x = 297,450,089,828.86
  5. Step 5: Solve for x
    x = 297,450,089,828.86/529,556.67
  6. Step 6: Final answer
    x = 561,696.43

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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.