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Finding the Fourth Proportional to 563,148.69, 777,154.01 and 308,483.07

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Solution

The fourth proportional to 563,148.69, 777,154.01 and 308,483.07 is: 425,711.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,148.69 : 777,154.01 = 308,483.07 : x
  2. Step 2: Convert to fraction form
    563,148.69/777,154.01 = 308,483.07/x
  3. Step 3: Cross multiply
    563,148.69x = 777,154.01 × 308,483.07
  4. Step 4: Simplify right side
    563,148.69x = 239,738,853,325.20
  5. Step 5: Solve for x
    x = 239,738,853,325.20/563,148.69
  6. Step 6: Final answer
    x = 425,711.46

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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.