Home / 873,620.02-1,205,396.14-491,507.38

Finding the Fourth Proportional to 873,620.02, 1,205,396.14 and 491,507.38

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Solution

The fourth proportional to 873,620.02, 1,205,396.14 and 491,507.38 is: 678,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,620.02 : 1,205,396.14 = 491,507.38 : x
  2. Step 2: Convert to fraction form
    873,620.02/1,205,396.14 = 491,507.38/x
  3. Step 3: Cross multiply
    873,620.02x = 1,205,396.14 × 491,507.38
  4. Step 4: Simplify right side
    873,620.02x = 592,461,098,633.51
  5. Step 5: Solve for x
    x = 592,461,098,633.51/873,620.02
  6. Step 6: Final answer
    x = 678,167.95

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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.