Home / 1,386,470.07-1,913,000.66-805,347.96

Finding the Fourth Proportional to 1,386,470.07, 1,913,000.66 and 805,347.96

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Solution

The fourth proportional to 1,386,470.07, 1,913,000.66 and 805,347.96 is: 1,111,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,470.07 : 1,913,000.66 = 805,347.96 : x
  2. Step 2: Convert to fraction form
    1,386,470.07/1,913,000.66 = 805,347.96/x
  3. Step 3: Cross multiply
    1,386,470.07x = 1,913,000.66 × 805,347.96
  4. Step 4: Simplify right side
    1,386,470.07x = 1,540,631,179,009.65
  5. Step 5: Solve for x
    x = 1,540,631,179,009.65/1,386,470.07
  6. Step 6: Final answer
    x = 1,111,189.64

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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.