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Finding the Fourth Proportional to 528,641.97, 729,536.79 and 299,199.24

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Solution

The fourth proportional to 528,641.97, 729,536.79 and 299,199.24 is: 412,901.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,641.97 : 729,536.79 = 299,199.24 : x
  2. Step 2: Convert to fraction form
    528,641.97/729,536.79 = 299,199.24/x
  3. Step 3: Cross multiply
    528,641.97x = 729,536.79 × 299,199.24
  4. Step 4: Simplify right side
    528,641.97x = 218,276,854,242.04
  5. Step 5: Solve for x
    x = 218,276,854,242.04/528,641.97
  6. Step 6: Final answer
    x = 412,901.11

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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.