Home / 690,714.19-952,932.76-418,585.78

Finding the Fourth Proportional to 690,714.19, 952,932.76 and 418,585.78

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Solution

The fourth proportional to 690,714.19, 952,932.76 and 418,585.78 is: 577,495.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,714.19 : 952,932.76 = 418,585.78 : x
  2. Step 2: Convert to fraction form
    690,714.19/952,932.76 = 418,585.78/x
  3. Step 3: Cross multiply
    690,714.19x = 952,932.76 × 418,585.78
  4. Step 4: Simplify right side
    690,714.19x = 398,884,102,632.15
  5. Step 5: Solve for x
    x = 398,884,102,632.15/690,714.19
  6. Step 6: Final answer
    x = 577,495.16

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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.