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Finding the Fourth Proportional to 578,130.40, 866,936.40 and 223,026.40

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Solution

The fourth proportional to 578,130.40, 866,936.40 and 223,026.40 is: 334,439.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,130.40 : 866,936.40 = 223,026.40 : x
  2. Step 2: Convert to fraction form
    578,130.40/866,936.40 = 223,026.40/x
  3. Step 3: Cross multiply
    578,130.40x = 866,936.40 × 223,026.40
  4. Step 4: Simplify right side
    578,130.40x = 193,349,704,320.96
  5. Step 5: Solve for x
    x = 193,349,704,320.96/578,130.40
  6. Step 6: Final answer
    x = 334,439.61

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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.