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Finding the Fourth Proportional to 528,650.60, 729,518.33 and 286,927.98

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Solution

The fourth proportional to 528,650.60, 729,518.33 and 286,927.98 is: 395,950.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,650.60 : 729,518.33 = 286,927.98 : x
  2. Step 2: Convert to fraction form
    528,650.60/729,518.33 = 286,927.98/x
  3. Step 3: Cross multiply
    528,650.60x = 729,518.33 × 286,927.98
  4. Step 4: Simplify right side
    528,650.60x = 209,319,219,365.23
  5. Step 5: Solve for x
    x = 209,319,219,365.23/528,650.60
  6. Step 6: Final answer
    x = 395,950.03

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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.