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Finding the Fourth Proportional to 873,813.06, 1,205,785.11 and 486,599.22

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Solution

The fourth proportional to 873,813.06, 1,205,785.11 and 486,599.22 is: 671,464.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,813.06 : 1,205,785.11 = 486,599.22 : x
  2. Step 2: Convert to fraction form
    873,813.06/1,205,785.11 = 486,599.22/x
  3. Step 3: Cross multiply
    873,813.06x = 1,205,785.11 × 486,599.22
  4. Step 4: Simplify right side
    873,813.06x = 586,734,094,013.61
  5. Step 5: Solve for x
    x = 586,734,094,013.61/873,813.06
  6. Step 6: Final answer
    x = 671,464.09

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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.