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Finding the Fourth Proportional to 556,215.52, 767,520.60 and 341,364.64

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Solution

The fourth proportional to 556,215.52, 767,520.60 and 341,364.64 is: 471,048.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,215.52 : 767,520.60 = 341,364.64 : x
  2. Step 2: Convert to fraction form
    556,215.52/767,520.60 = 341,364.64/x
  3. Step 3: Cross multiply
    556,215.52x = 767,520.60 × 341,364.64
  4. Step 4: Simplify right side
    556,215.52x = 262,004,393,311.58
  5. Step 5: Solve for x
    x = 262,004,393,311.58/556,215.52
  6. Step 6: Final answer
    x = 471,048.33

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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.