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Finding the Fourth Proportional to 381,303.68, 525,980.45 and 237,814.61

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Solution

The fourth proportional to 381,303.68, 525,980.45 and 237,814.61 is: 328,047.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,303.68 : 525,980.45 = 237,814.61 : x
  2. Step 2: Convert to fraction form
    381,303.68/525,980.45 = 237,814.61/x
  3. Step 3: Cross multiply
    381,303.68x = 525,980.45 × 237,814.61
  4. Step 4: Simplify right side
    381,303.68x = 125,085,831,765.40
  5. Step 5: Solve for x
    x = 125,085,831,765.40/381,303.68
  6. Step 6: Final answer
    x = 328,047.80

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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.