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Finding the Fourth Proportional to 404,088.60, 557,543.88 and 260,817.96

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Solution

The fourth proportional to 404,088.60, 557,543.88 and 260,817.96 is: 359,865.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,088.60 : 557,543.88 = 260,817.96 : x
  2. Step 2: Convert to fraction form
    404,088.60/557,543.88 = 260,817.96/x
  3. Step 3: Cross multiply
    404,088.60x = 557,543.88 × 260,817.96
  4. Step 4: Simplify right side
    404,088.60x = 145,417,457,392.09
  5. Step 5: Solve for x
    x = 145,417,457,392.09/404,088.60
  6. Step 6: Final answer
    x = 359,865.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.