Home / 913,505.13-1,260,695.60-526,313.51

Finding the Fourth Proportional to 913,505.13, 1,260,695.60 and 526,313.51

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Solution

The fourth proportional to 913,505.13, 1,260,695.60 and 526,313.51 is: 726,346.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,505.13 : 1,260,695.60 = 526,313.51 : x
  2. Step 2: Convert to fraction form
    913,505.13/1,260,695.60 = 526,313.51/x
  3. Step 3: Cross multiply
    913,505.13x = 1,260,695.60 × 526,313.51
  4. Step 4: Simplify right side
    913,505.13x = 663,521,124,043.80
  5. Step 5: Solve for x
    x = 663,521,124,043.80/913,505.13
  6. Step 6: Final answer
    x = 726,346.36

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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.