Home / 623,332.26-859,890.33-390,717.27

Finding the Fourth Proportional to 623,332.26, 859,890.33 and 390,717.27

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Solution

The fourth proportional to 623,332.26, 859,890.33 and 390,717.27 is: 538,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,332.26 : 859,890.33 = 390,717.27 : x
  2. Step 2: Convert to fraction form
    623,332.26/859,890.33 = 390,717.27/x
  3. Step 3: Cross multiply
    623,332.26x = 859,890.33 × 390,717.27
  4. Step 4: Simplify right side
    623,332.26x = 335,974,002,237.00
  5. Step 5: Solve for x
    x = 335,974,002,237.00/623,332.26
  6. Step 6: Final answer
    x = 538,996.65

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1.5x scale

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.