Home / 808,637.30-1,213,954.35-509,117.30

Finding the Fourth Proportional to 808,637.30, 1,213,954.35 and 509,117.30

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Solution

The fourth proportional to 808,637.30, 1,213,954.35 and 509,117.30 is: 764,304.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,637.30 : 1,213,954.35 = 509,117.30 : x
  2. Step 2: Convert to fraction form
    808,637.30/1,213,954.35 = 509,117.30/x
  3. Step 3: Cross multiply
    808,637.30x = 1,213,954.35 × 509,117.30
  4. Step 4: Simplify right side
    808,637.30x = 618,045,160,995.26
  5. Step 5: Solve for x
    x = 618,045,160,995.26/808,637.30
  6. Step 6: Final answer
    x = 764,304.54

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.