Home / 985,339.98-1,478,010.24-453,308.76

Finding the Fourth Proportional to 985,339.98, 1,478,010.24 and 453,308.76

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Solution

The fourth proportional to 985,339.98, 1,478,010.24 and 453,308.76 is: 679,963.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,339.98 : 1,478,010.24 = 453,308.76 : x
  2. Step 2: Convert to fraction form
    985,339.98/1,478,010.24 = 453,308.76/x
  3. Step 3: Cross multiply
    985,339.98x = 1,478,010.24 × 453,308.76
  4. Step 4: Simplify right side
    985,339.98x = 669,994,989,161.70
  5. Step 5: Solve for x
    x = 669,994,989,161.70/985,339.98
  6. Step 6: Final answer
    x = 679,963.26

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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.