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Finding the Fourth Proportional to 316,734.32, 437,100.40 and 180,765.56

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Solution

The fourth proportional to 316,734.32, 437,100.40 and 180,765.56 is: 249,460.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,734.32 : 437,100.40 = 180,765.56 : x
  2. Step 2: Convert to fraction form
    316,734.32/437,100.40 = 180,765.56/x
  3. Step 3: Cross multiply
    316,734.32x = 437,100.40 × 180,765.56
  4. Step 4: Simplify right side
    316,734.32x = 79,012,698,582.22
  5. Step 5: Solve for x
    x = 79,012,698,582.22/316,734.32
  6. Step 6: Final answer
    x = 249,460.49

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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.