Home / 784,279.16-1,082,640.18-664,048.83

Finding the Fourth Proportional to 784,279.16, 1,082,640.18 and 664,048.83

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Solution

The fourth proportional to 784,279.16, 1,082,640.18 and 664,048.83 is: 916,670.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,279.16 : 1,082,640.18 = 664,048.83 : x
  2. Step 2: Convert to fraction form
    784,279.16/1,082,640.18 = 664,048.83/x
  3. Step 3: Cross multiply
    784,279.16x = 1,082,640.18 × 664,048.83
  4. Step 4: Simplify right side
    784,279.16x = 718,925,947,654.80
  5. Step 5: Solve for x
    x = 718,925,947,654.80/784,279.16
  6. Step 6: Final answer
    x = 916,670.98

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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.