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Finding the Fourth Proportional to 671,681.96, 926,621.53 and 453,820.51

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Solution

The fourth proportional to 671,681.96, 926,621.53 and 453,820.51 is: 626,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,681.96 : 926,621.53 = 453,820.51 : x
  2. Step 2: Convert to fraction form
    671,681.96/926,621.53 = 453,820.51/x
  3. Step 3: Cross multiply
    671,681.96x = 926,621.53 × 453,820.51
  4. Step 4: Simplify right side
    671,681.96x = 420,519,855,321.58
  5. Step 5: Solve for x
    x = 420,519,855,321.58/671,681.96
  6. Step 6: Final answer
    x = 626,069.90

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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.