Home / 913,726.21-1,260,901.29-505,799.23

Finding the Fourth Proportional to 913,726.21, 1,260,901.29 and 505,799.23

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Solution

The fourth proportional to 913,726.21, 1,260,901.29 and 505,799.23 is: 697,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,726.21 : 1,260,901.29 = 505,799.23 : x
  2. Step 2: Convert to fraction form
    913,726.21/1,260,901.29 = 505,799.23/x
  3. Step 3: Cross multiply
    913,726.21x = 1,260,901.29 × 505,799.23
  4. Step 4: Simplify right side
    913,726.21x = 637,762,895,283.50
  5. Step 5: Solve for x
    x = 637,762,895,283.50/913,726.21
  6. Step 6: Final answer
    x = 697,980.30

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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.