Home / 1,147,488.81-1,583,590.68-638,180.25

Finding the Fourth Proportional to 1,147,488.81, 1,583,590.68 and 638,180.25

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Solution

The fourth proportional to 1,147,488.81, 1,583,590.68 and 638,180.25 is: 880,719.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,488.81 : 1,583,590.68 = 638,180.25 : x
  2. Step 2: Convert to fraction form
    1,147,488.81/1,583,590.68 = 638,180.25/x
  3. Step 3: Cross multiply
    1,147,488.81x = 1,583,590.68 × 638,180.25
  4. Step 4: Simplify right side
    1,147,488.81x = 1,010,616,296,060.07
  5. Step 5: Solve for x
    x = 1,010,616,296,060.07/1,147,488.81
  6. Step 6: Final answer
    x = 880,719.96

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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.