Home / 289,219.84-433,918.35-129,430.24

Finding the Fourth Proportional to 289,219.84, 433,918.35 and 129,430.24

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Solution

The fourth proportional to 289,219.84, 433,918.35 and 129,430.24 is: 194,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,219.84 : 433,918.35 = 129,430.24 : x
  2. Step 2: Convert to fraction form
    289,219.84/433,918.35 = 129,430.24/x
  3. Step 3: Cross multiply
    289,219.84x = 433,918.35 × 129,430.24
  4. Step 4: Simplify right side
    289,219.84x = 56,162,156,180.90
  5. Step 5: Solve for x
    x = 56,162,156,180.90/289,219.84
  6. Step 6: Final answer
    x = 194,185.01

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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.