Home / 786,534.88-1,085,510.64-447,054.88

Finding the Fourth Proportional to 786,534.88, 1,085,510.64 and 447,054.88

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Solution

The fourth proportional to 786,534.88, 1,085,510.64 and 447,054.88 is: 616,988.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,534.88 : 1,085,510.64 = 447,054.88 : x
  2. Step 2: Convert to fraction form
    786,534.88/1,085,510.64 = 447,054.88/x
  3. Step 3: Cross multiply
    786,534.88x = 1,085,510.64 × 447,054.88
  4. Step 4: Simplify right side
    786,534.88x = 485,282,828,903.92
  5. Step 5: Solve for x
    x = 485,282,828,903.92/786,534.88
  6. Step 6: Final answer
    x = 616,988.31

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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.