Home / 691,021.59-953,567.84-380,910.60

Finding the Fourth Proportional to 691,021.59, 953,567.84 and 380,910.60

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Solution

The fourth proportional to 691,021.59, 953,567.84 and 380,910.60 is: 525,633.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,021.59 : 953,567.84 = 380,910.60 : x
  2. Step 2: Convert to fraction form
    691,021.59/953,567.84 = 380,910.60/x
  3. Step 3: Cross multiply
    691,021.59x = 953,567.84 × 380,910.60
  4. Step 4: Simplify right side
    691,021.59x = 363,224,098,075.10
  5. Step 5: Solve for x
    x = 363,224,098,075.10/691,021.59
  6. Step 6: Final answer
    x = 525,633.50

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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.