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Finding the Fourth Proportional to 586,169.87, 808,914.42 and 317,897.87

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Solution

The fourth proportional to 586,169.87, 808,914.42 and 317,897.87 is: 438,699.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,169.87 : 808,914.42 = 317,897.87 : x
  2. Step 2: Convert to fraction form
    586,169.87/808,914.42 = 317,897.87/x
  3. Step 3: Cross multiply
    586,169.87x = 808,914.42 × 317,897.87
  4. Step 4: Simplify right side
    586,169.87x = 257,152,171,130.29
  5. Step 5: Solve for x
    x = 257,152,171,130.29/586,169.87
  6. Step 6: Final answer
    x = 438,699.06

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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.