Home / 638,834.85-881,590.23-366,920.28

Finding the Fourth Proportional to 638,834.85, 881,590.23 and 366,920.28

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Solution

The fourth proportional to 638,834.85, 881,590.23 and 366,920.28 is: 506,348.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,834.85 : 881,590.23 = 366,920.28 : x
  2. Step 2: Convert to fraction form
    638,834.85/881,590.23 = 366,920.28/x
  3. Step 3: Cross multiply
    638,834.85x = 881,590.23 × 366,920.28
  4. Step 4: Simplify right side
    638,834.85x = 323,473,334,036.86
  5. Step 5: Solve for x
    x = 323,473,334,036.86/638,834.85
  6. Step 6: Final answer
    x = 506,348.92

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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.