Home / 661,394.06-912,719.28-359,588.06

Finding the Fourth Proportional to 661,394.06, 912,719.28 and 359,588.06

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Solution

The fourth proportional to 661,394.06, 912,719.28 and 359,588.06 is: 496,229.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,394.06 : 912,719.28 = 359,588.06 : x
  2. Step 2: Convert to fraction form
    661,394.06/912,719.28 = 359,588.06/x
  3. Step 3: Cross multiply
    661,394.06x = 912,719.28 × 359,588.06
  4. Step 4: Simplify right side
    661,394.06x = 328,202,955,219.80
  5. Step 5: Solve for x
    x = 328,202,955,219.80/661,394.06
  6. Step 6: Final answer
    x = 496,229.06

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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.