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Finding the Fourth Proportional to 608,547.12, 839,730.40 and 336,571.80

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Solution

The fourth proportional to 608,547.12, 839,730.40 and 336,571.80 is: 464,433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,547.12 : 839,730.40 = 336,571.80 : x
  2. Step 2: Convert to fraction form
    608,547.12/839,730.40 = 336,571.80/x
  3. Step 3: Cross multiply
    608,547.12x = 839,730.40 × 336,571.80
  4. Step 4: Simplify right side
    608,547.12x = 282,629,572,242.72
  5. Step 5: Solve for x
    x = 282,629,572,242.72/608,547.12
  6. Step 6: Final answer
    x = 464,433.34

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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.