Home / 819,699.90-1,131,183.63-457,124.16

Finding the Fourth Proportional to 819,699.90, 1,131,183.63 and 457,124.16

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Solution

The fourth proportional to 819,699.90, 1,131,183.63 and 457,124.16 is: 630,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,699.90 : 1,131,183.63 = 457,124.16 : x
  2. Step 2: Convert to fraction form
    819,699.90/1,131,183.63 = 457,124.16/x
  3. Step 3: Cross multiply
    819,699.90x = 1,131,183.63 × 457,124.16
  4. Step 4: Simplify right side
    819,699.90x = 517,091,366,669.50
  5. Step 5: Solve for x
    x = 517,091,366,669.50/819,699.90
  6. Step 6: Final answer
    x = 630,830.10

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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.