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Finding the Fourth Proportional to 671,463.21, 926,590.69 and 365,533.19

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Solution

The fourth proportional to 671,463.21, 926,590.69 and 365,533.19 is: 504,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,463.21 : 926,590.69 = 365,533.19 : x
  2. Step 2: Convert to fraction form
    671,463.21/926,590.69 = 365,533.19/x
  3. Step 3: Cross multiply
    671,463.21x = 926,590.69 × 365,533.19
  4. Step 4: Simplify right side
    671,463.21x = 338,699,650,740.00
  5. Step 5: Solve for x
    x = 338,699,650,740.00/671,463.21
  6. Step 6: Final answer
    x = 504,420.27

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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.