Home / 819,115.28-1,130,384.64-456,562.46

Finding the Fourth Proportional to 819,115.28, 1,130,384.64 and 456,562.46

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Solution

The fourth proportional to 819,115.28, 1,130,384.64 and 456,562.46 is: 630,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,115.28 : 1,130,384.64 = 456,562.46 : x
  2. Step 2: Convert to fraction form
    819,115.28/1,130,384.64 = 456,562.46/x
  3. Step 3: Cross multiply
    819,115.28x = 1,130,384.64 × 456,562.46
  4. Step 4: Simplify right side
    819,115.28x = 516,091,191,984.61
  5. Step 5: Solve for x
    x = 516,091,191,984.61/819,115.28
  6. Step 6: Final answer
    x = 630,059.29

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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.