Home / 838,574.20-1,157,253.20-456,621.92

Finding the Fourth Proportional to 838,574.20, 1,157,253.20 and 456,621.92

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Solution

The fourth proportional to 838,574.20, 1,157,253.20 and 456,621.92 is: 630,149.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,574.20 : 1,157,253.20 = 456,621.92 : x
  2. Step 2: Convert to fraction form
    838,574.20/1,157,253.20 = 456,621.92/x
  3. Step 3: Cross multiply
    838,574.20x = 1,157,253.20 × 456,621.92
  4. Step 4: Simplify right side
    838,574.20x = 528,427,178,110.14
  5. Step 5: Solve for x
    x = 528,427,178,110.14/838,574.20
  6. Step 6: Final answer
    x = 630,149.58

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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.