Home / 509,917.30-764,985.30-154,967.20

Finding the Fourth Proportional to 509,917.30, 764,985.30 and 154,967.20

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Solution

The fourth proportional to 509,917.30, 764,985.30 and 154,967.20 is: 232,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,917.30 : 764,985.30 = 154,967.20 : x
  2. Step 2: Convert to fraction form
    509,917.30/764,985.30 = 154,967.20/x
  3. Step 3: Cross multiply
    509,917.30x = 764,985.30 × 154,967.20
  4. Step 4: Simplify right side
    509,917.30x = 118,547,629,982.16
  5. Step 5: Solve for x
    x = 118,547,629,982.16/509,917.30
  6. Step 6: Final answer
    x = 232,484.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.