Home / 646,869.10-970,303.65-366,933.10

Finding the Fourth Proportional to 646,869.10, 970,303.65 and 366,933.10

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Solution

The fourth proportional to 646,869.10, 970,303.65 and 366,933.10 is: 550,399.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,869.10 : 970,303.65 = 366,933.10 : x
  2. Step 2: Convert to fraction form
    646,869.10/970,303.65 = 366,933.10/x
  3. Step 3: Cross multiply
    646,869.10x = 970,303.65 × 366,933.10
  4. Step 4: Simplify right side
    646,869.10x = 356,036,526,235.82
  5. Step 5: Solve for x
    x = 356,036,526,235.82/646,869.10
  6. Step 6: Final answer
    x = 550,399.65

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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.