Home / 630,124.14-869,079.83-403,790.70

Finding the Fourth Proportional to 630,124.14, 869,079.83 and 403,790.70

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Solution

The fourth proportional to 630,124.14, 869,079.83 and 403,790.70 is: 556,916.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,124.14 : 869,079.83 = 403,790.70 : x
  2. Step 2: Convert to fraction form
    630,124.14/869,079.83 = 403,790.70/x
  3. Step 3: Cross multiply
    630,124.14x = 869,079.83 × 403,790.70
  4. Step 4: Simplify right side
    630,124.14x = 350,926,352,911.58
  5. Step 5: Solve for x
    x = 350,926,352,911.58/630,124.14
  6. Step 6: Final answer
    x = 556,916.22

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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.