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Finding the Fourth Proportional to 448,208.69, 618,528.00 and 247,004.69

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Solution

The fourth proportional to 448,208.69, 618,528.00 and 247,004.69 is: 340,866.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,208.69 : 618,528.00 = 247,004.69 : x
  2. Step 2: Convert to fraction form
    448,208.69/618,528.00 = 247,004.69/x
  3. Step 3: Cross multiply
    448,208.69x = 618,528.00 × 247,004.69
  4. Step 4: Simplify right side
    448,208.69x = 152,779,315,658.76
  5. Step 5: Solve for x
    x = 152,779,315,658.76/448,208.69
  6. Step 6: Final answer
    x = 340,866.48

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Half scale
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Double scale
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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.