Home / 779,603.63-1,075,853.00-421,907.63

Finding the Fourth Proportional to 779,603.63, 1,075,853.00 and 421,907.63

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Solution

The fourth proportional to 779,603.63, 1,075,853.00 and 421,907.63 is: 582,232.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,603.63 : 1,075,853.00 = 421,907.63 : x
  2. Step 2: Convert to fraction form
    779,603.63/1,075,853.00 = 421,907.63/x
  3. Step 3: Cross multiply
    779,603.63x = 1,075,853.00 × 421,907.63
  4. Step 4: Simplify right side
    779,603.63x = 453,910,585,133.89
  5. Step 5: Solve for x
    x = 453,910,585,133.89/779,603.63
  6. Step 6: Final answer
    x = 582,232.52

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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.