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Finding the Fourth Proportional to 284,230.74, 392,236.01 and 156,903.60

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Solution

The fourth proportional to 284,230.74, 392,236.01 and 156,903.60 is: 216,525.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,230.74 : 392,236.01 = 156,903.60 : x
  2. Step 2: Convert to fraction form
    284,230.74/392,236.01 = 156,903.60/x
  3. Step 3: Cross multiply
    284,230.74x = 392,236.01 × 156,903.60
  4. Step 4: Simplify right side
    284,230.74x = 61,543,242,018.64
  5. Step 5: Solve for x
    x = 61,543,242,018.64/284,230.74
  6. Step 6: Final answer
    x = 216,525.64

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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.