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Finding the Fourth Proportional to 556,421.76, 834,629.76 and 481,317.12

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Solution

The fourth proportional to 556,421.76, 834,629.76 and 481,317.12 is: 721,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,421.76 : 834,629.76 = 481,317.12 : x
  2. Step 2: Convert to fraction form
    556,421.76/834,629.76 = 481,317.12/x
  3. Step 3: Cross multiply
    556,421.76x = 834,629.76 × 481,317.12
  4. Step 4: Simplify right side
    556,421.76x = 401,721,592,349.49
  5. Step 5: Solve for x
    x = 401,721,592,349.49/556,421.76
  6. Step 6: Final answer
    x = 721,973.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.