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Finding the Fourth Proportional to 448,947, 619,547.67 and 247,743

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Solution

The fourth proportional to 448,947, 619,547.67 and 247,743 is: 341,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,947 : 619,547.67 = 247,743 : x
  2. Step 2: Convert to fraction form
    448,947/619,547.67 = 247,743/x
  3. Step 3: Cross multiply
    448,947x = 619,547.67 × 247,743
  4. Step 4: Simplify right side
    448,947x = 153,488,598,408.81
  5. Step 5: Solve for x
    x = 153,488,598,408.81/448,947
  6. Step 6: Final answer
    x = 341,885.79

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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.