Home / 1,778,394.30-2,667,598.31-430,554.87

Finding the Fourth Proportional to 1,778,394.30, 2,667,598.31 and 430,554.87

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Solution

The fourth proportional to 1,778,394.30, 2,667,598.31 and 430,554.87 is: 645,833.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,394.30 : 2,667,598.31 = 430,554.87 : x
  2. Step 2: Convert to fraction form
    1,778,394.30/2,667,598.31 = 430,554.87/x
  3. Step 3: Cross multiply
    1,778,394.30x = 2,667,598.31 × 430,554.87
  4. Step 4: Simplify right side
    1,778,394.30x = 1,148,547,441,421.50
  5. Step 5: Solve for x
    x = 1,148,547,441,421.50/1,778,394.30
  6. Step 6: Final answer
    x = 645,833.96

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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.