Home / 453,289.40-679,934.10-186,961.40

Finding the Fourth Proportional to 453,289.40, 679,934.10 and 186,961.40

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Solution

The fourth proportional to 453,289.40, 679,934.10 and 186,961.40 is: 280,442.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,289.40 : 679,934.10 = 186,961.40 : x
  2. Step 2: Convert to fraction form
    453,289.40/679,934.10 = 186,961.40/x
  3. Step 3: Cross multiply
    453,289.40x = 679,934.10 × 186,961.40
  4. Step 4: Simplify right side
    453,289.40x = 127,121,431,243.74
  5. Step 5: Solve for x
    x = 127,121,431,243.74/453,289.40
  6. Step 6: Final answer
    x = 280,442.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.