Home / 668,919.48-923,109.51-382,445.58

Finding the Fourth Proportional to 668,919.48, 923,109.51 and 382,445.58

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Solution

The fourth proportional to 668,919.48, 923,109.51 and 382,445.58 is: 527,775.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,919.48 : 923,109.51 = 382,445.58 : x
  2. Step 2: Convert to fraction form
    668,919.48/923,109.51 = 382,445.58/x
  3. Step 3: Cross multiply
    668,919.48x = 923,109.51 × 382,445.58
  4. Step 4: Simplify right side
    668,919.48x = 353,039,151,955.47
  5. Step 5: Solve for x
    x = 353,039,151,955.47/668,919.48
  6. Step 6: Final answer
    x = 527,775.26

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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.