Home / 813,526.84-1,122,287.34-511,887.16

Finding the Fourth Proportional to 813,526.84, 1,122,287.34 and 511,887.16

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Solution

The fourth proportional to 813,526.84, 1,122,287.34 and 511,887.16 is: 706,165.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,526.84 : 1,122,287.34 = 511,887.16 : x
  2. Step 2: Convert to fraction form
    813,526.84/1,122,287.34 = 511,887.16/x
  3. Step 3: Cross multiply
    813,526.84x = 1,122,287.34 × 511,887.16
  4. Step 4: Simplify right side
    813,526.84x = 574,484,479,176.56
  5. Step 5: Solve for x
    x = 574,484,479,176.56/813,526.84
  6. Step 6: Final answer
    x = 706,165.37

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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.