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Finding the Fourth Proportional to 388,683.64, 532,887.23 and 381,598.84

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Solution

The fourth proportional to 388,683.64, 532,887.23 and 381,598.84 is: 523,173.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,683.64 : 532,887.23 = 381,598.84 : x
  2. Step 2: Convert to fraction form
    388,683.64/532,887.23 = 381,598.84/x
  3. Step 3: Cross multiply
    388,683.64x = 532,887.23 × 381,598.84
  4. Step 4: Simplify right side
    388,683.64x = 203,349,148,818.81
  5. Step 5: Solve for x
    x = 203,349,148,818.81/388,683.64
  6. Step 6: Final answer
    x = 523,173.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.