Finding the Fourth Proportional to 664,266.90, 996,400.35 and 619,652.10
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Solution
The fourth proportional to 664,266.90, 996,400.35 and 619,652.10 is: 929,478.15
Step by Step Solution
- Step 1: Write the proportion equation
664,266.90 : 996,400.35 = 619,652.10 : x - Step 2: Convert to fraction form
664,266.90/996,400.35 = 619,652.10/x - Step 3: Cross multiply
664,266.90x = 996,400.35 × 619,652.10 - Step 4: Simplify right side
664,266.90x = 617,421,569,318.24 - Step 5: Solve for x
x = 617,421,569,318.24/664,266.90 - Step 6: Final answer
x = 929,478.15
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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.