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Finding the Fourth Proportional to 452,811.16, 624,220.91 and 316,421.79

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Solution

The fourth proportional to 452,811.16, 624,220.91 and 316,421.79 is: 436,201.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,811.16 : 624,220.91 = 316,421.79 : x
  2. Step 2: Convert to fraction form
    452,811.16/624,220.91 = 316,421.79/x
  3. Step 3: Cross multiply
    452,811.16x = 624,220.91 × 316,421.79
  4. Step 4: Simplify right side
    452,811.16x = 197,517,100,252.39
  5. Step 5: Solve for x
    x = 197,517,100,252.39/452,811.16
  6. Step 6: Final answer
    x = 436,201.93

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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.