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Finding the Fourth Proportional to 586,059.48, 808,887.71 and 356,690.64

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Solution

The fourth proportional to 586,059.48, 808,887.71 and 356,690.64 is: 492,309.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,059.48 : 808,887.71 = 356,690.64 : x
  2. Step 2: Convert to fraction form
    586,059.48/808,887.71 = 356,690.64/x
  3. Step 3: Cross multiply
    586,059.48x = 808,887.71 × 356,690.64
  4. Step 4: Simplify right side
    586,059.48x = 288,522,674,968.03
  5. Step 5: Solve for x
    x = 288,522,674,968.03/586,059.48
  6. Step 6: Final answer
    x = 492,309.54

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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.