Home / 808,564.86-1,115,799.96-445,980.93

Finding the Fourth Proportional to 808,564.86, 1,115,799.96 and 445,980.93

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Solution

The fourth proportional to 808,564.86, 1,115,799.96 and 445,980.93 is: 615,442.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,564.86 : 1,115,799.96 = 445,980.93 : x
  2. Step 2: Convert to fraction form
    808,564.86/1,115,799.96 = 445,980.93/x
  3. Step 3: Cross multiply
    808,564.86x = 1,115,799.96 × 445,980.93
  4. Step 4: Simplify right side
    808,564.86x = 497,625,503,854.76
  5. Step 5: Solve for x
    x = 497,625,503,854.76/808,564.86
  6. Step 6: Final answer
    x = 615,442.90

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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.