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Finding the Fourth Proportional to 556,575.40, 768,075.55 and 301,926.59

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Solution

The fourth proportional to 556,575.40, 768,075.55 and 301,926.59 is: 416,659.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,575.40 : 768,075.55 = 301,926.59 : x
  2. Step 2: Convert to fraction form
    556,575.40/768,075.55 = 301,926.59/x
  3. Step 3: Cross multiply
    556,575.40x = 768,075.55 × 301,926.59
  4. Step 4: Simplify right side
    556,575.40x = 231,902,429,958.96
  5. Step 5: Solve for x
    x = 231,902,429,958.96/556,575.40
  6. Step 6: Final answer
    x = 416,659.50

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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.