Home / 679,012.56-1,022,581.08-618,479.14

Finding the Fourth Proportional to 679,012.56, 1,022,581.08 and 618,479.14

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Solution

The fourth proportional to 679,012.56, 1,022,581.08 and 618,479.14 is: 931,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,012.56 : 1,022,581.08 = 618,479.14 : x
  2. Step 2: Convert to fraction form
    679,012.56/1,022,581.08 = 618,479.14/x
  3. Step 3: Cross multiply
    679,012.56x = 1,022,581.08 × 618,479.14
  4. Step 4: Simplify right side
    679,012.56x = 632,445,066,938.67
  5. Step 5: Solve for x
    x = 632,445,066,938.67/679,012.56
  6. Step 6: Final answer
    x = 931,418.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.