Home / 641,386.66-885,207.02-369,401.62

Finding the Fourth Proportional to 641,386.66, 885,207.02 and 369,401.62

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Solution

The fourth proportional to 641,386.66, 885,207.02 and 369,401.62 is: 509,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,386.66 : 885,207.02 = 369,401.62 : x
  2. Step 2: Convert to fraction form
    641,386.66/885,207.02 = 369,401.62/x
  3. Step 3: Cross multiply
    641,386.66x = 885,207.02 × 369,401.62
  4. Step 4: Simplify right side
    641,386.66x = 326,996,907,223.37
  5. Step 5: Solve for x
    x = 326,996,907,223.37/641,386.66
  6. Step 6: Final answer
    x = 509,828.05

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1.5x scale

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.