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Finding the Fourth Proportional to 439,440.76, 606,444.58 and 248,442.76

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Solution

The fourth proportional to 439,440.76, 606,444.58 and 248,442.76 is: 342,860.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,440.76 : 606,444.58 = 248,442.76 : x
  2. Step 2: Convert to fraction form
    439,440.76/606,444.58 = 248,442.76/x
  3. Step 3: Cross multiply
    439,440.76x = 606,444.58 × 248,442.76
  4. Step 4: Simplify right side
    439,440.76x = 150,666,765,242.24
  5. Step 5: Solve for x
    x = 150,666,765,242.24/439,440.76
  6. Step 6: Final answer
    x = 342,860.24

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Half scale
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Double scale
Find fourth proportional to 439,441.76, 606,445.96 and 248,443.76
Similar ratio
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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.