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Finding the Fourth Proportional to 482,858.60, 724,287.90 and 356,887.40

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Solution

The fourth proportional to 482,858.60, 724,287.90 and 356,887.40 is: 535,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,858.60 : 724,287.90 = 356,887.40 : x
  2. Step 2: Convert to fraction form
    482,858.60/724,287.90 = 356,887.40/x
  3. Step 3: Cross multiply
    482,858.60x = 724,287.90 × 356,887.40
  4. Step 4: Simplify right side
    482,858.60x = 258,489,225,482.46
  5. Step 5: Solve for x
    x = 258,489,225,482.46/482,858.60
  6. Step 6: Final answer
    x = 535,331.10

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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.