Home / 1,679,333.11-2,317,479.76-915,386.67

Finding the Fourth Proportional to 1,679,333.11, 2,317,479.76 and 915,386.67

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Solution

The fourth proportional to 1,679,333.11, 2,317,479.76 and 915,386.67 is: 1,263,233.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,333.11 : 2,317,479.76 = 915,386.67 : x
  2. Step 2: Convert to fraction form
    1,679,333.11/2,317,479.76 = 915,386.67/x
  3. Step 3: Cross multiply
    1,679,333.11x = 2,317,479.76 × 915,386.67
  4. Step 4: Simplify right side
    1,679,333.11x = 2,121,390,081,443.03
  5. Step 5: Solve for x
    x = 2,121,390,081,443.03/1,679,333.11
  6. Step 6: Final answer
    x = 1,263,233.64

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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.