Home / 778,829.20-1,075,014.28-456,609.04

Finding the Fourth Proportional to 778,829.20, 1,075,014.28 and 456,609.04

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Solution

The fourth proportional to 778,829.20, 1,075,014.28 and 456,609.04 is: 630,255.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,829.20 : 1,075,014.28 = 456,609.04 : x
  2. Step 2: Convert to fraction form
    778,829.20/1,075,014.28 = 456,609.04/x
  3. Step 3: Cross multiply
    778,829.20x = 1,075,014.28 × 456,609.04
  4. Step 4: Simplify right side
    778,829.20x = 490,861,238,377.09
  5. Step 5: Solve for x
    x = 490,861,238,377.09/778,829.20
  6. Step 6: Final answer
    x = 630,255.31

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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.