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Finding the Fourth Proportional to 448,210.69, 618,530.76 and 247,006.69

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Solution

The fourth proportional to 448,210.69, 618,530.76 and 247,006.69 is: 340,869.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,210.69 : 618,530.76 = 247,006.69 : x
  2. Step 2: Convert to fraction form
    448,210.69/618,530.76 = 247,006.69/x
  3. Step 3: Cross multiply
    448,210.69x = 618,530.76 × 247,006.69
  4. Step 4: Simplify right side
    448,210.69x = 152,781,235,690.78
  5. Step 5: Solve for x
    x = 152,781,235,690.78/448,210.69
  6. Step 6: Final answer
    x = 340,869.24

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1.5x scale

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.