Home / 1,069,400.90-1,605,008.55-438,767.30

Finding the Fourth Proportional to 1,069,400.90, 1,605,008.55 and 438,767.30

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Solution

The fourth proportional to 1,069,400.90, 1,605,008.55 and 438,767.30 is: 658,523.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,400.90 : 1,605,008.55 = 438,767.30 : x
  2. Step 2: Convert to fraction form
    1,069,400.90/1,605,008.55 = 438,767.30/x
  3. Step 3: Cross multiply
    1,069,400.90x = 1,605,008.55 × 438,767.30
  4. Step 4: Simplify right side
    1,069,400.90x = 704,225,267,960.42
  5. Step 5: Solve for x
    x = 704,225,267,960.42/1,069,400.90
  6. Step 6: Final answer
    x = 658,523.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.