Home / 317,145.60-437,681.16-209,526.84

Finding the Fourth Proportional to 317,145.60, 437,681.16 and 209,526.84

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Solution

The fourth proportional to 317,145.60, 437,681.16 and 209,526.84 is: 289,160.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,145.60 : 437,681.16 = 209,526.84 : x
  2. Step 2: Convert to fraction form
    317,145.60/437,681.16 = 209,526.84/x
  3. Step 3: Cross multiply
    317,145.60x = 437,681.16 × 209,526.84
  4. Step 4: Simplify right side
    317,145.60x = 91,705,950,382.33
  5. Step 5: Solve for x
    x = 91,705,950,382.33/317,145.60
  6. Step 6: Final answer
    x = 289,160.41

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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.