Home / 639,054.26-881,897.72-352,582.77

Finding the Fourth Proportional to 639,054.26, 881,897.72 and 352,582.77

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Solution

The fourth proportional to 639,054.26, 881,897.72 and 352,582.77 is: 486,565.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,054.26 : 881,897.72 = 352,582.77 : x
  2. Step 2: Convert to fraction form
    639,054.26/881,897.72 = 352,582.77/x
  3. Step 3: Cross multiply
    639,054.26x = 881,897.72 × 352,582.77
  4. Step 4: Simplify right side
    639,054.26x = 310,941,939,211.37
  5. Step 5: Solve for x
    x = 310,941,939,211.37/639,054.26
  6. Step 6: Final answer
    x = 486,565.79

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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.