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Finding the Fourth Proportional to 315,920,785.60, 473,030,872.80 and 315,920,785.60

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Solution

The fourth proportional to 315,920,785.60, 473,030,872.80 and 315,920,785.60 is: 473,030,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,920,785.60 : 473,030,872.80 = 315,920,785.60 : x
  2. Step 2: Convert to fraction form
    315,920,785.60/473,030,872.80 = 315,920,785.60/x
  3. Step 3: Cross multiply
    315,920,785.60x = 473,030,872.80 × 315,920,785.60
  4. Step 4: Simplify right side
    315,920,785.60x = 149,440,284,948,029,696
  5. Step 5: Solve for x
    x = 149,440,284,948,029,696/315,920,785.60
  6. Step 6: Final answer
    x = 473,030,872.80

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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.