Home / 913,563.97-1,260,686.13-505,666.60

Finding the Fourth Proportional to 913,563.97, 1,260,686.13 and 505,666.60

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Solution

The fourth proportional to 913,563.97, 1,260,686.13 and 505,666.60 is: 697,802.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,563.97 : 1,260,686.13 = 505,666.60 : x
  2. Step 2: Convert to fraction form
    913,563.97/1,260,686.13 = 505,666.60/x
  3. Step 3: Cross multiply
    913,563.97x = 1,260,686.13 × 505,666.60
  4. Step 4: Simplify right side
    913,563.97x = 637,486,863,976.29
  5. Step 5: Solve for x
    x = 637,486,863,976.29/913,563.97
  6. Step 6: Final answer
    x = 697,802.11

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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.