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Finding the Fourth Proportional to 441,790.48, 609,686.76 and 260,419.60

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Solution

The fourth proportional to 441,790.48, 609,686.76 and 260,419.60 is: 359,388.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,790.48 : 609,686.76 = 260,419.60 : x
  2. Step 2: Convert to fraction form
    441,790.48/609,686.76 = 260,419.60/x
  3. Step 3: Cross multiply
    441,790.48x = 609,686.76 × 260,419.60
  4. Step 4: Simplify right side
    441,790.48x = 158,774,382,164.50
  5. Step 5: Solve for x
    x = 158,774,382,164.50/441,790.48
  6. Step 6: Final answer
    x = 359,388.42

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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.