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Finding the Fourth Proportional to 473,712.80, 710,223.60 and 193,085.60

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Solution

The fourth proportional to 473,712.80, 710,223.60 and 193,085.60 is: 289,487.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,712.80 : 710,223.60 = 193,085.60 : x
  2. Step 2: Convert to fraction form
    473,712.80/710,223.60 = 193,085.60/x
  3. Step 3: Cross multiply
    473,712.80x = 710,223.60 × 193,085.60
  4. Step 4: Simplify right side
    473,712.80x = 137,133,949,940.16
  5. Step 5: Solve for x
    x = 137,133,949,940.16/473,712.80
  6. Step 6: Final answer
    x = 289,487.53

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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.