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Finding the Fourth Proportional to 528,116.96, 728,606.40 and 364,762.64

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Solution

The fourth proportional to 528,116.96, 728,606.40 and 364,762.64 is: 503,237.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,116.96 : 728,606.40 = 364,762.64 : x
  2. Step 2: Convert to fraction form
    528,116.96/728,606.40 = 364,762.64/x
  3. Step 3: Cross multiply
    528,116.96x = 728,606.40 × 364,762.64
  4. Step 4: Simplify right side
    528,116.96x = 265,768,393,984.90
  5. Step 5: Solve for x
    x = 265,768,393,984.90/528,116.96
  6. Step 6: Final answer
    x = 503,237.76

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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.