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Finding the Fourth Proportional to 528,502.32, 729,462.78 and 324,602.10

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Solution

The fourth proportional to 528,502.32, 729,462.78 and 324,602.10 is: 448,030.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,502.32 : 729,462.78 = 324,602.10 : x
  2. Step 2: Convert to fraction form
    528,502.32/729,462.78 = 324,602.10/x
  3. Step 3: Cross multiply
    528,502.32x = 729,462.78 × 324,602.10
  4. Step 4: Simplify right side
    528,502.32x = 236,785,150,259.84
  5. Step 5: Solve for x
    x = 236,785,150,259.84/528,502.32
  6. Step 6: Final answer
    x = 448,030.48

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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.