Home / 638,718.03-881,401.23-366,594.42

Finding the Fourth Proportional to 638,718.03, 881,401.23 and 366,594.42

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Solution

The fourth proportional to 638,718.03, 881,401.23 and 366,594.42 is: 505,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,718.03 : 881,401.23 = 366,594.42 : x
  2. Step 2: Convert to fraction form
    638,718.03/881,401.23 = 366,594.42/x
  3. Step 3: Cross multiply
    638,718.03x = 881,401.23 × 366,594.42
  4. Step 4: Simplify right side
    638,718.03x = 323,116,772,699.14
  5. Step 5: Solve for x
    x = 323,116,772,699.14/638,718.03
  6. Step 6: Final answer
    x = 505,883.28

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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.