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Finding the Fourth Proportional to 572,605.20, 858,907.80 and 513,556.20

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Solution

The fourth proportional to 572,605.20, 858,907.80 and 513,556.20 is: 770,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,605.20 : 858,907.80 = 513,556.20 : x
  2. Step 2: Convert to fraction form
    572,605.20/858,907.80 = 513,556.20/x
  3. Step 3: Cross multiply
    572,605.20x = 858,907.80 × 513,556.20
  4. Step 4: Simplify right side
    572,605.20x = 441,097,425,918.36
  5. Step 5: Solve for x
    x = 441,097,425,918.36/572,605.20
  6. Step 6: Final answer
    x = 770,334.30

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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.