Home / 608,623.80-912,935.70-397,116.60

Finding the Fourth Proportional to 608,623.80, 912,935.70 and 397,116.60

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Solution

The fourth proportional to 608,623.80, 912,935.70 and 397,116.60 is: 595,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,623.80 : 912,935.70 = 397,116.60 : x
  2. Step 2: Convert to fraction form
    608,623.80/912,935.70 = 397,116.60/x
  3. Step 3: Cross multiply
    608,623.80x = 912,935.70 × 397,116.60
  4. Step 4: Simplify right side
    608,623.80x = 362,541,921,202.62
  5. Step 5: Solve for x
    x = 362,541,921,202.62/608,623.80
  6. Step 6: Final answer
    x = 595,674.90

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Double scale
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Similar ratio
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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.