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Finding the Fourth Proportional to 562,696.74, 776,521.47 and 308,047.92

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Solution

The fourth proportional to 562,696.74, 776,521.47 and 308,047.92 is: 425,106.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,696.74 : 776,521.47 = 308,047.92 : x
  2. Step 2: Convert to fraction form
    562,696.74/776,521.47 = 308,047.92/x
  3. Step 3: Cross multiply
    562,696.74x = 776,521.47 × 308,047.92
  4. Step 4: Simplify right side
    562,696.74x = 239,205,823,668.84
  5. Step 5: Solve for x
    x = 239,205,823,668.84/562,696.74
  6. Step 6: Final answer
    x = 425,106.11

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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.