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Finding the Fourth Proportional to 857,618.24, 1,183,585.80 and 475,768

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Solution

The fourth proportional to 857,618.24, 1,183,585.80 and 475,768 is: 656,600.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,618.24 : 1,183,585.80 = 475,768 : x
  2. Step 2: Convert to fraction form
    857,618.24/1,183,585.80 = 475,768/x
  3. Step 3: Cross multiply
    857,618.24x = 1,183,585.80 × 475,768
  4. Step 4: Simplify right side
    857,618.24x = 563,112,248,894.40
  5. Step 5: Solve for x
    x = 563,112,248,894.40/857,618.24
  6. Step 6: Final answer
    x = 656,600.13

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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.