Home / 786,535.38-1,085,510.98-447,054.66

Finding the Fourth Proportional to 786,535.38, 1,085,510.98 and 447,054.66

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Solution

The fourth proportional to 786,535.38, 1,085,510.98 and 447,054.66 is: 616,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,535.38 : 1,085,510.98 = 447,054.66 : x
  2. Step 2: Convert to fraction form
    786,535.38/1,085,510.98 = 447,054.66/x
  3. Step 3: Cross multiply
    786,535.38x = 1,085,510.98 × 447,054.66
  4. Step 4: Simplify right side
    786,535.38x = 485,282,742,090.17
  5. Step 5: Solve for x
    x = 485,282,742,090.17/786,535.38
  6. Step 6: Final answer
    x = 616,987.81

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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.