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Finding the Fourth Proportional to 316,444.73, 436,671.81 and 180,484.47

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Solution

The fourth proportional to 316,444.73, 436,671.81 and 180,484.47 is: 249,056.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,444.73 : 436,671.81 = 180,484.47 : x
  2. Step 2: Convert to fraction form
    316,444.73/436,671.81 = 180,484.47/x
  3. Step 3: Cross multiply
    316,444.73x = 436,671.81 × 180,484.47
  4. Step 4: Simplify right side
    316,444.73x = 78,812,480,191.79
  5. Step 5: Solve for x
    x = 78,812,480,191.79/316,444.73
  6. Step 6: Final answer
    x = 249,056.07

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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.