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Finding the Fourth Proportional to 496,812.30, 745,218.45 and 483,690.30

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Solution

The fourth proportional to 496,812.30, 745,218.45 and 483,690.30 is: 725,535.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,812.30 : 745,218.45 = 483,690.30 : x
  2. Step 2: Convert to fraction form
    496,812.30/745,218.45 = 483,690.30/x
  3. Step 3: Cross multiply
    496,812.30x = 745,218.45 × 483,690.30
  4. Step 4: Simplify right side
    496,812.30x = 360,454,935,646.04
  5. Step 5: Solve for x
    x = 360,454,935,646.04/496,812.30
  6. Step 6: Final answer
    x = 725,535.45

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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.