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Finding the Fourth Proportional to 607,075.20, 910,612.80 and 291,369.60

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Solution

The fourth proportional to 607,075.20, 910,612.80 and 291,369.60 is: 437,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,075.20 : 910,612.80 = 291,369.60 : x
  2. Step 2: Convert to fraction form
    607,075.20/910,612.80 = 291,369.60/x
  3. Step 3: Cross multiply
    607,075.20x = 910,612.80 × 291,369.60
  4. Step 4: Simplify right side
    607,075.20x = 265,324,887,290.88
  5. Step 5: Solve for x
    x = 265,324,887,290.88/607,075.20
  6. Step 6: Final answer
    x = 437,054.40

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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.