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Finding the Fourth Proportional to 556,627.01, 768,145.55 and 301,978.13

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Solution

The fourth proportional to 556,627.01, 768,145.55 and 301,978.13 is: 416,729.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,627.01 : 768,145.55 = 301,978.13 : x
  2. Step 2: Convert to fraction form
    556,627.01/768,145.55 = 301,978.13/x
  3. Step 3: Cross multiply
    556,627.01x = 768,145.55 × 301,978.13
  4. Step 4: Simplify right side
    556,627.01x = 231,963,151,406.20
  5. Step 5: Solve for x
    x = 231,963,151,406.20/556,627.01
  6. Step 6: Final answer
    x = 416,729.96

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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.