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Finding the Fourth Proportional to 473,811.60, 710,458.20 and 193,011.60

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Solution

The fourth proportional to 473,811.60, 710,458.20 and 193,011.60 is: 289,411.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,811.60 : 710,458.20 = 193,011.60 : x
  2. Step 2: Convert to fraction form
    473,811.60/710,458.20 = 193,011.60/x
  3. Step 3: Cross multiply
    473,811.60x = 710,458.20 × 193,011.60
  4. Step 4: Simplify right side
    473,811.60x = 137,126,673,915.12
  5. Step 5: Solve for x
    x = 137,126,673,915.12/473,811.60
  6. Step 6: Final answer
    x = 289,411.81

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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.