Home / 916,734.96-1,265,074.56-508,812.96

Finding the Fourth Proportional to 916,734.96, 1,265,074.56 and 508,812.96

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Solution

The fourth proportional to 916,734.96, 1,265,074.56 and 508,812.96 is: 702,150.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,734.96 : 1,265,074.56 = 508,812.96 : x
  2. Step 2: Convert to fraction form
    916,734.96/1,265,074.56 = 508,812.96/x
  3. Step 3: Cross multiply
    916,734.96x = 1,265,074.56 × 508,812.96
  4. Step 4: Simplify right side
    916,734.96x = 643,686,331,494.30
  5. Step 5: Solve for x
    x = 643,686,331,494.30/916,734.96
  6. Step 6: Final answer
    x = 702,150.96

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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.