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Finding the Fourth Proportional to 618,087.66, 852,890.49 and 346,117.74

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Solution

The fourth proportional to 618,087.66, 852,890.49 and 346,117.74 is: 477,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,087.66 : 852,890.49 = 346,117.74 : x
  2. Step 2: Convert to fraction form
    618,087.66/852,890.49 = 346,117.74/x
  3. Step 3: Cross multiply
    618,087.66x = 852,890.49 × 346,117.74
  4. Step 4: Simplify right side
    618,087.66x = 295,200,528,866.29
  5. Step 5: Solve for x
    x = 295,200,528,866.29/618,087.66
  6. Step 6: Final answer
    x = 477,603.01

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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.