Home / 528,864.75-728,526.05-451,087.02

Finding the Fourth Proportional to 528,864.75, 728,526.05 and 451,087.02

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Solution

The fourth proportional to 528,864.75, 728,526.05 and 451,087.02 is: 621,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,864.75 : 728,526.05 = 451,087.02 : x
  2. Step 2: Convert to fraction form
    528,864.75/728,526.05 = 451,087.02/x
  3. Step 3: Cross multiply
    528,864.75x = 728,526.05 × 451,087.02
  4. Step 4: Simplify right side
    528,864.75x = 328,628,642,631.44
  5. Step 5: Solve for x
    x = 328,628,642,631.44/528,864.75
  6. Step 6: Final answer
    x = 621,385.04

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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.