Home / 912,854.42-1,259,433.14-525,661.52

Finding the Fourth Proportional to 912,854.42, 1,259,433.14 and 525,661.52

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Solution

The fourth proportional to 912,854.42, 1,259,433.14 and 525,661.52 is: 725,236.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,854.42 : 1,259,433.14 = 525,661.52 : x
  2. Step 2: Convert to fraction form
    912,854.42/1,259,433.14 = 525,661.52/x
  3. Step 3: Cross multiply
    912,854.42x = 1,259,433.14 × 525,661.52
  4. Step 4: Simplify right side
    912,854.42x = 662,035,538,710.77
  5. Step 5: Solve for x
    x = 662,035,538,710.77/912,854.42
  6. Step 6: Final answer
    x = 725,236.71

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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.