Home / 821,498.34-1,133,655.21-458,927.40

Finding the Fourth Proportional to 821,498.34, 1,133,655.21 and 458,927.40

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Solution

The fourth proportional to 821,498.34, 1,133,655.21 and 458,927.40 is: 633,312.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,498.34 : 1,133,655.21 = 458,927.40 : x
  2. Step 2: Convert to fraction form
    821,498.34/1,133,655.21 = 458,927.40/x
  3. Step 3: Cross multiply
    821,498.34x = 1,133,655.21 × 458,927.40
  4. Step 4: Simplify right side
    821,498.34x = 520,265,438,021.75
  5. Step 5: Solve for x
    x = 520,265,438,021.75/821,498.34
  6. Step 6: Final answer
    x = 633,312.83

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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.