Home / 779,713.88-1,075,890.60-435,507.38

Finding the Fourth Proportional to 779,713.88, 1,075,890.60 and 435,507.38

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Solution

The fourth proportional to 779,713.88, 1,075,890.60 and 435,507.38 is: 600,936.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,713.88 : 1,075,890.60 = 435,507.38 : x
  2. Step 2: Convert to fraction form
    779,713.88/1,075,890.60 = 435,507.38/x
  3. Step 3: Cross multiply
    779,713.88x = 1,075,890.60 × 435,507.38
  4. Step 4: Simplify right side
    779,713.88x = 468,558,296,372.63
  5. Step 5: Solve for x
    x = 468,558,296,372.63/779,713.88
  6. Step 6: Final answer
    x = 600,936.20

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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.