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Finding the Fourth Proportional to 562,564.70, 776,337.99 and 307,913.66

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Solution

The fourth proportional to 562,564.70, 776,337.99 and 307,913.66 is: 424,920.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,564.70 : 776,337.99 = 307,913.66 : x
  2. Step 2: Convert to fraction form
    562,564.70/776,337.99 = 307,913.66/x
  3. Step 3: Cross multiply
    562,564.70x = 776,337.99 × 307,913.66
  4. Step 4: Simplify right side
    562,564.70x = 239,045,071,897.94
  5. Step 5: Solve for x
    x = 239,045,071,897.94/562,564.70
  6. Step 6: Final answer
    x = 424,920.14

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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.