Home / 911,528.35-1,257,653.19-524,323.51

Finding the Fourth Proportional to 911,528.35, 1,257,653.19 and 524,323.51

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Solution

The fourth proportional to 911,528.35, 1,257,653.19 and 524,323.51 is: 723,419.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,528.35 : 1,257,653.19 = 524,323.51 : x
  2. Step 2: Convert to fraction form
    911,528.35/1,257,653.19 = 524,323.51/x
  3. Step 3: Cross multiply
    911,528.35x = 1,257,653.19 × 524,323.51
  4. Step 4: Simplify right side
    911,528.35x = 659,417,134,943.50
  5. Step 5: Solve for x
    x = 659,417,134,943.50/911,528.35
  6. Step 6: Final answer
    x = 723,419.23

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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.