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Finding the Fourth Proportional to 382,888.72, 528,244.72 and 382,298.24

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Solution

The fourth proportional to 382,888.72, 528,244.72 and 382,298.24 is: 527,430.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,888.72 : 528,244.72 = 382,298.24 : x
  2. Step 2: Convert to fraction form
    382,888.72/528,244.72 = 382,298.24/x
  3. Step 3: Cross multiply
    382,888.72x = 528,244.72 × 382,298.24
  4. Step 4: Simplify right side
    382,888.72x = 201,947,026,745.29
  5. Step 5: Solve for x
    x = 201,947,026,745.29/382,888.72
  6. Step 6: Final answer
    x = 527,430.08

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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.