Home / 638,714.10-881,395.79-366,590.46

Finding the Fourth Proportional to 638,714.10, 881,395.79 and 366,590.46

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Solution

The fourth proportional to 638,714.10, 881,395.79 and 366,590.46 is: 505,877.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,714.10 : 881,395.79 = 366,590.46 : x
  2. Step 2: Convert to fraction form
    638,714.10/881,395.79 = 366,590.46/x
  3. Step 3: Cross multiply
    638,714.10x = 881,395.79 × 366,590.46
  4. Step 4: Simplify right side
    638,714.10x = 323,111,291,632.52
  5. Step 5: Solve for x
    x = 323,111,291,632.52/638,714.10
  6. Step 6: Final answer
    x = 505,877.81

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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.