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Finding the Fourth Proportional to 529,764.75, 731,075.36 and 291,300.75

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Solution

The fourth proportional to 529,764.75, 731,075.36 and 291,300.75 is: 401,995.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,764.75 : 731,075.36 = 291,300.75 : x
  2. Step 2: Convert to fraction form
    529,764.75/731,075.36 = 291,300.75/x
  3. Step 3: Cross multiply
    529,764.75x = 731,075.36 × 291,300.75
  4. Step 4: Simplify right side
    529,764.75x = 212,962,799,218.02
  5. Step 5: Solve for x
    x = 212,962,799,218.02/529,764.75
  6. Step 6: Final answer
    x = 401,995.04

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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.