Home / 785,654.16-1,178,998.02-430,917

Finding the Fourth Proportional to 785,654.16, 1,178,998.02 and 430,917

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Solution

The fourth proportional to 785,654.16, 1,178,998.02 and 430,917 is: 646,658.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,654.16 : 1,178,998.02 = 430,917 : x
  2. Step 2: Convert to fraction form
    785,654.16/1,178,998.02 = 430,917/x
  3. Step 3: Cross multiply
    785,654.16x = 1,178,998.02 × 430,917
  4. Step 4: Simplify right side
    785,654.16x = 508,050,289,784.34
  5. Step 5: Solve for x
    x = 508,050,289,784.34/785,654.16
  6. Step 6: Final answer
    x = 646,658.94

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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.