Home / 317,154.60-437,693.58-209,535.84

Finding the Fourth Proportional to 317,154.60, 437,693.58 and 209,535.84

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Solution

The fourth proportional to 317,154.60, 437,693.58 and 209,535.84 is: 289,172.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,154.60 : 437,693.58 = 209,535.84 : x
  2. Step 2: Convert to fraction form
    317,154.60/437,693.58 = 209,535.84/x
  3. Step 3: Cross multiply
    317,154.60x = 437,693.58 × 209,535.84
  4. Step 4: Simplify right side
    317,154.60x = 91,712,491,947.91
  5. Step 5: Solve for x
    x = 91,712,491,947.91/317,154.60
  6. Step 6: Final answer
    x = 289,172.83

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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.