Home / 853,433.16-1,177,773.54-490,857.12

Finding the Fourth Proportional to 853,433.16, 1,177,773.54 and 490,857.12

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Solution

The fourth proportional to 853,433.16, 1,177,773.54 and 490,857.12 is: 677,403.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,433.16 : 1,177,773.54 = 490,857.12 : x
  2. Step 2: Convert to fraction form
    853,433.16/1,177,773.54 = 490,857.12/x
  3. Step 3: Cross multiply
    853,433.16x = 1,177,773.54 × 490,857.12
  4. Step 4: Simplify right side
    853,433.16x = 578,118,527,856.61
  5. Step 5: Solve for x
    x = 578,118,527,856.61/853,433.16
  6. Step 6: Final answer
    x = 677,403.40

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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.