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Finding the Fourth Proportional to 316,686.84, 437,059.11 and 180,741.10

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Solution

The fourth proportional to 316,686.84, 437,059.11 and 180,741.10 is: 249,440.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,686.84 : 437,059.11 = 180,741.10 : x
  2. Step 2: Convert to fraction form
    316,686.84/437,059.11 = 180,741.10/x
  3. Step 3: Cross multiply
    316,686.84x = 437,059.11 × 180,741.10
  4. Step 4: Simplify right side
    316,686.84x = 78,994,544,306.42
  5. Step 5: Solve for x
    x = 78,994,544,306.42/316,686.84
  6. Step 6: Final answer
    x = 249,440.57

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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.