Home / 657,529.38-986,853.51-258,448.86

Finding the Fourth Proportional to 657,529.38, 986,853.51 and 258,448.86

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Solution

The fourth proportional to 657,529.38, 986,853.51 and 258,448.86 is: 387,893.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,529.38 : 986,853.51 = 258,448.86 : x
  2. Step 2: Convert to fraction form
    657,529.38/986,853.51 = 258,448.86/x
  3. Step 3: Cross multiply
    657,529.38x = 986,853.51 × 258,448.86
  4. Step 4: Simplify right side
    657,529.38x = 255,051,164,646.50
  5. Step 5: Solve for x
    x = 255,051,164,646.50/657,529.38
  6. Step 6: Final answer
    x = 387,893.18

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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.