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Finding the Fourth Proportional to 316,680.84, 437,010.98 and 180,712.28

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Solution

The fourth proportional to 316,680.84, 437,010.98 and 180,712.28 is: 249,378.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,680.84 : 437,010.98 = 180,712.28 : x
  2. Step 2: Convert to fraction form
    316,680.84/437,010.98 = 180,712.28/x
  3. Step 3: Cross multiply
    316,680.84x = 437,010.98 × 180,712.28
  4. Step 4: Simplify right side
    316,680.84x = 78,973,250,580.83
  5. Step 5: Solve for x
    x = 78,973,250,580.83/316,680.84
  6. Step 6: Final answer
    x = 249,378.05

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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.