Home / 656,051.07-984,387.65-390,336.51

Finding the Fourth Proportional to 656,051.07, 984,387.65 and 390,336.51

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Solution

The fourth proportional to 656,051.07, 984,387.65 and 390,336.51 is: 585,689.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,051.07 : 984,387.65 = 390,336.51 : x
  2. Step 2: Convert to fraction form
    656,051.07/984,387.65 = 390,336.51/x
  3. Step 3: Cross multiply
    656,051.07x = 984,387.65 × 390,336.51
  4. Step 4: Simplify right side
    656,051.07x = 384,242,437,836.42
  5. Step 5: Solve for x
    x = 384,242,437,836.42/656,051.07
  6. Step 6: Final answer
    x = 585,689.83

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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.