Home / 690,799.61-953,266.53-380,692.11

Finding the Fourth Proportional to 690,799.61, 953,266.53 and 380,692.11

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Solution

The fourth proportional to 690,799.61, 953,266.53 and 380,692.11 is: 525,334.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,799.61 : 953,266.53 = 380,692.11 : x
  2. Step 2: Convert to fraction form
    690,799.61/953,266.53 = 380,692.11/x
  3. Step 3: Cross multiply
    690,799.61x = 953,266.53 × 380,692.11
  4. Step 4: Simplify right side
    690,799.61x = 362,901,046,698.08
  5. Step 5: Solve for x
    x = 362,901,046,698.08/690,799.61
  6. Step 6: Final answer
    x = 525,334.76

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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.