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Finding the Fourth Proportional to 291,991.40, 437,841.30 and 134,041.40

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Solution

The fourth proportional to 291,991.40, 437,841.30 and 134,041.40 is: 200,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,991.40 : 437,841.30 = 134,041.40 : x
  2. Step 2: Convert to fraction form
    291,991.40/437,841.30 = 134,041.40/x
  3. Step 3: Cross multiply
    291,991.40x = 437,841.30 × 134,041.40
  4. Step 4: Simplify right side
    291,991.40x = 58,688,860,829.82
  5. Step 5: Solve for x
    x = 58,688,860,829.82/291,991.40
  6. Step 6: Final answer
    x = 200,995.17

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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.