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Finding the Fourth Proportional to 886,210.30, 1,222,963.97 and 483,802.30

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Solution

The fourth proportional to 886,210.30, 1,222,963.97 and 483,802.30 is: 667,643.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,210.30 : 1,222,963.97 = 483,802.30 : x
  2. Step 2: Convert to fraction form
    886,210.30/1,222,963.97 = 483,802.30/x
  3. Step 3: Cross multiply
    886,210.30x = 1,222,963.97 × 483,802.30
  4. Step 4: Simplify right side
    886,210.30x = 591,672,779,084.12
  5. Step 5: Solve for x
    x = 591,672,779,084.12/886,210.30
  6. Step 6: Final answer
    x = 667,643.76

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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.