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Finding the Fourth Proportional to 572,289.32, 859,276.66 and 320,063.98

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Solution

The fourth proportional to 572,289.32, 859,276.66 and 320,063.98 is: 480,567.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,289.32 : 859,276.66 = 320,063.98 : x
  2. Step 2: Convert to fraction form
    572,289.32/859,276.66 = 320,063.98/x
  3. Step 3: Cross multiply
    572,289.32x = 859,276.66 × 320,063.98
  4. Step 4: Simplify right side
    572,289.32x = 275,023,507,720.71
  5. Step 5: Solve for x
    x = 275,023,507,720.71/572,289.32
  6. Step 6: Final answer
    x = 480,567.26

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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.