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Finding the Fourth Proportional to 559,467.50, 772,055.34 and 304,820.48

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Solution

The fourth proportional to 559,467.50, 772,055.34 and 304,820.48 is: 420,646.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,467.50 : 772,055.34 = 304,820.48 : x
  2. Step 2: Convert to fraction form
    559,467.50/772,055.34 = 304,820.48/x
  3. Step 3: Cross multiply
    559,467.50x = 772,055.34 × 304,820.48
  4. Step 4: Simplify right side
    559,467.50x = 235,338,279,325.36
  5. Step 5: Solve for x
    x = 235,338,279,325.36/559,467.50
  6. Step 6: Final answer
    x = 420,646.92

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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.