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Finding the Fourth Proportional to 529,072.32, 730,329.16 and 368,020.80

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Solution

The fourth proportional to 529,072.32, 730,329.16 and 368,020.80 is: 508,014.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,072.32 : 730,329.16 = 368,020.80 : x
  2. Step 2: Convert to fraction form
    529,072.32/730,329.16 = 368,020.80/x
  3. Step 3: Cross multiply
    529,072.32x = 730,329.16 × 368,020.80
  4. Step 4: Simplify right side
    529,072.32x = 268,776,321,726.53
  5. Step 5: Solve for x
    x = 268,776,321,726.53/529,072.32
  6. Step 6: Final answer
    x = 508,014.33

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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.