Home / 769,368.88-1,154,385.42-414,312.17

Finding the Fourth Proportional to 769,368.88, 1,154,385.42 and 414,312.17

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Solution

The fourth proportional to 769,368.88, 1,154,385.42 and 414,312.17 is: 621,647.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,368.88 : 1,154,385.42 = 414,312.17 : x
  2. Step 2: Convert to fraction form
    769,368.88/1,154,385.42 = 414,312.17/x
  3. Step 3: Cross multiply
    769,368.88x = 1,154,385.42 × 414,312.17
  4. Step 4: Simplify right side
    769,368.88x = 478,275,923,381.47
  5. Step 5: Solve for x
    x = 478,275,923,381.47/769,368.88
  6. Step 6: Final answer
    x = 621,647.09

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Double scale
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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.