Home / 769,053.42-1,154,156.85-289,754.01

Finding the Fourth Proportional to 769,053.42, 1,154,156.85 and 289,754.01

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Solution

The fourth proportional to 769,053.42, 1,154,156.85 and 289,754.01 is: 434,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,053.42 : 1,154,156.85 = 289,754.01 : x
  2. Step 2: Convert to fraction form
    769,053.42/1,154,156.85 = 289,754.01/x
  3. Step 3: Cross multiply
    769,053.42x = 1,154,156.85 × 289,754.01
  4. Step 4: Simplify right side
    769,053.42x = 334,421,575,456.47
  5. Step 5: Solve for x
    x = 334,421,575,456.47/769,053.42
  6. Step 6: Final answer
    x = 434,848.30

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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.