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Finding the Fourth Proportional to 416,948.46, 575,587.26 and 279,364.32

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Solution

The fourth proportional to 416,948.46, 575,587.26 and 279,364.32 is: 385,655.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,948.46 : 575,587.26 = 279,364.32 : x
  2. Step 2: Convert to fraction form
    416,948.46/575,587.26 = 279,364.32/x
  3. Step 3: Cross multiply
    416,948.46x = 575,587.26 × 279,364.32
  4. Step 4: Simplify right side
    416,948.46x = 160,798,543,490.56
  5. Step 5: Solve for x
    x = 160,798,543,490.56/416,948.46
  6. Step 6: Final answer
    x = 385,655.68

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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.