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Finding the Fourth Proportional to 528,676.67, 729,952.76 and 325,000.55

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Solution

The fourth proportional to 528,676.67, 729,952.76 and 325,000.55 is: 448,733.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,676.67 : 729,952.76 = 325,000.55 : x
  2. Step 2: Convert to fraction form
    528,676.67/729,952.76 = 325,000.55/x
  3. Step 3: Cross multiply
    528,676.67x = 729,952.76 × 325,000.55
  4. Step 4: Simplify right side
    528,676.67x = 237,235,051,111.40
  5. Step 5: Solve for x
    x = 237,235,051,111.40/528,676.67
  6. Step 6: Final answer
    x = 448,733.72

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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.