Home / 1,221,395.95-1,685,535.65-670,107.93

Finding the Fourth Proportional to 1,221,395.95, 1,685,535.65 and 670,107.93

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Solution

The fourth proportional to 1,221,395.95, 1,685,535.65 and 670,107.93 is: 924,754.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,395.95 : 1,685,535.65 = 670,107.93 : x
  2. Step 2: Convert to fraction form
    1,221,395.95/1,685,535.65 = 670,107.93/x
  3. Step 3: Cross multiply
    1,221,395.95x = 1,685,535.65 × 670,107.93
  4. Step 4: Simplify right side
    1,221,395.95x = 1,129,490,805,362.70
  5. Step 5: Solve for x
    x = 1,129,490,805,362.70/1,221,395.95
  6. Step 6: Final answer
    x = 924,754.01

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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.