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Finding the Fourth Proportional to 406,323.40, 608,318.70 and 248,859.40

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Solution

The fourth proportional to 406,323.40, 608,318.70 and 248,859.40 is: 372,574.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,323.40 : 608,318.70 = 248,859.40 : x
  2. Step 2: Convert to fraction form
    406,323.40/608,318.70 = 248,859.40/x
  3. Step 3: Cross multiply
    406,323.40x = 608,318.70 × 248,859.40
  4. Step 4: Simplify right side
    406,323.40x = 151,385,826,690.78
  5. Step 5: Solve for x
    x = 151,385,826,690.78/406,323.40
  6. Step 6: Final answer
    x = 372,574.72

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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.