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Finding the Fourth Proportional to 528,173.16, 728,030.06 and 413,253.60

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Solution

The fourth proportional to 528,173.16, 728,030.06 and 413,253.60 is: 569,625.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,173.16 : 728,030.06 = 413,253.60 : x
  2. Step 2: Convert to fraction form
    528,173.16/728,030.06 = 413,253.60/x
  3. Step 3: Cross multiply
    528,173.16x = 728,030.06 × 413,253.60
  4. Step 4: Simplify right side
    528,173.16x = 300,861,043,203.22
  5. Step 5: Solve for x
    x = 300,861,043,203.22/528,173.16
  6. Step 6: Final answer
    x = 569,625.77

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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.