Home / 1,105,611.39-1,658,411.64-431,761.14

Finding the Fourth Proportional to 1,105,611.39, 1,658,411.64 and 431,761.14

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Solution

The fourth proportional to 1,105,611.39, 1,658,411.64 and 431,761.14 is: 647,639.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,611.39 : 1,658,411.64 = 431,761.14 : x
  2. Step 2: Convert to fraction form
    1,105,611.39/1,658,411.64 = 431,761.14/x
  3. Step 3: Cross multiply
    1,105,611.39x = 1,658,411.64 × 431,761.14
  4. Step 4: Simplify right side
    1,105,611.39x = 716,037,700,275.67
  5. Step 5: Solve for x
    x = 716,037,700,275.67/1,105,611.39
  6. Step 6: Final answer
    x = 647,639.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.