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Finding the Fourth Proportional to 632,720.40, 873,154.07 and 346,240.41

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Solution

The fourth proportional to 632,720.40, 873,154.07 and 346,240.41 is: 477,811.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,720.40 : 873,154.07 = 346,240.41 : x
  2. Step 2: Convert to fraction form
    632,720.40/873,154.07 = 346,240.41/x
  3. Step 3: Cross multiply
    632,720.40x = 873,154.07 × 346,240.41
  4. Step 4: Simplify right side
    632,720.40x = 302,321,221,458.77
  5. Step 5: Solve for x
    x = 302,321,221,458.77/632,720.40
  6. Step 6: Final answer
    x = 477,811.72

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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.