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Finding the Fourth Proportional to 730,740.80, 1,095,592.80 and 331,572.80

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Solution

The fourth proportional to 730,740.80, 1,095,592.80 and 331,572.80 is: 497,123.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,740.80 : 1,095,592.80 = 331,572.80 : x
  2. Step 2: Convert to fraction form
    730,740.80/1,095,592.80 = 331,572.80/x
  3. Step 3: Cross multiply
    730,740.80x = 1,095,592.80 × 331,572.80
  4. Step 4: Simplify right side
    730,740.80x = 363,268,772,355.84
  5. Step 5: Solve for x
    x = 363,268,772,355.84/730,740.80
  6. Step 6: Final answer
    x = 497,123.98

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1.5x scale

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.