Home / 1,185,798.66-1,636,401.78-641,934.06

Finding the Fourth Proportional to 1,185,798.66, 1,636,401.78 and 641,934.06

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Solution

The fourth proportional to 1,185,798.66, 1,636,401.78 and 641,934.06 is: 885,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,798.66 : 1,636,401.78 = 641,934.06 : x
  2. Step 2: Convert to fraction form
    1,185,798.66/1,636,401.78 = 641,934.06/x
  3. Step 3: Cross multiply
    1,185,798.66x = 1,636,401.78 × 641,934.06
  4. Step 4: Simplify right side
    1,185,798.66x = 1,050,462,038,426.63
  5. Step 5: Solve for x
    x = 1,050,462,038,426.63/1,185,798.66
  6. Step 6: Final answer
    x = 885,868.80

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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.