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Finding the Fourth Proportional to 556,216.48, 767,571.60 and 301,566.88

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Solution

The fourth proportional to 556,216.48, 767,571.60 and 301,566.88 is: 416,158.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,216.48 : 767,571.60 = 301,566.88 : x
  2. Step 2: Convert to fraction form
    556,216.48/767,571.60 = 301,566.88/x
  3. Step 3: Cross multiply
    556,216.48x = 767,571.60 × 301,566.88
  4. Step 4: Simplify right side
    556,216.48x = 231,474,172,588.61
  5. Step 5: Solve for x
    x = 231,474,172,588.61/556,216.48
  6. Step 6: Final answer
    x = 416,158.42

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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.