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Finding the Fourth Proportional to 586,035, 808,728.66 and 317,763

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Solution

The fourth proportional to 586,035, 808,728.66 and 317,763 is: 438,513.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,035 : 808,728.66 = 317,763 : x
  2. Step 2: Convert to fraction form
    586,035/808,728.66 = 317,763/x
  3. Step 3: Cross multiply
    586,035x = 808,728.66 × 317,763
  4. Step 4: Simplify right side
    586,035x = 256,984,045,187.58
  5. Step 5: Solve for x
    x = 256,984,045,187.58/586,035
  6. Step 6: Final answer
    x = 438,513.14

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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.