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Finding the Fourth Proportional to 362,598.40, 543,897.60 and 278,520.40

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Solution

The fourth proportional to 362,598.40, 543,897.60 and 278,520.40 is: 417,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,598.40 : 543,897.60 = 278,520.40 : x
  2. Step 2: Convert to fraction form
    362,598.40/543,897.60 = 278,520.40/x
  3. Step 3: Cross multiply
    362,598.40x = 543,897.60 × 278,520.40
  4. Step 4: Simplify right side
    362,598.40x = 151,486,577,111.04
  5. Step 5: Solve for x
    x = 151,486,577,111.04/362,598.40
  6. Step 6: Final answer
    x = 417,780.60

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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.