Home / 528,864.07-728,525.09-451,086.34

Finding the Fourth Proportional to 528,864.07, 728,525.09 and 451,086.34

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Solution

The fourth proportional to 528,864.07, 728,525.09 and 451,086.34 is: 621,384.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,864.07 : 728,525.09 = 451,086.34 : x
  2. Step 2: Convert to fraction form
    528,864.07/728,525.09 = 451,086.34/x
  3. Step 3: Cross multiply
    528,864.07x = 728,525.09 × 451,086.34
  4. Step 4: Simplify right side
    528,864.07x = 328,627,715,752.67
  5. Step 5: Solve for x
    x = 328,627,715,752.67/528,864.07
  6. Step 6: Final answer
    x = 621,384.09

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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.