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Finding the Fourth Proportional to 562,223.28, 775,886.40 and 307,574.47

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Solution

The fourth proportional to 562,223.28, 775,886.40 and 307,574.47 is: 424,462.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,223.28 : 775,886.40 = 307,574.47 : x
  2. Step 2: Convert to fraction form
    562,223.28/775,886.40 = 307,574.47/x
  3. Step 3: Cross multiply
    562,223.28x = 775,886.40 × 307,574.47
  4. Step 4: Simplify right side
    562,223.28x = 238,642,848,260.21
  5. Step 5: Solve for x
    x = 238,642,848,260.21/562,223.28
  6. Step 6: Final answer
    x = 424,462.77

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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.