Home / 1,278,854.32-1,916,998.44-436,830.16

Finding the Fourth Proportional to 1,278,854.32, 1,916,998.44 and 436,830.16

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Solution

The fourth proportional to 1,278,854.32, 1,916,998.44 and 436,830.16 is: 654,806.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,854.32 : 1,916,998.44 = 436,830.16 : x
  2. Step 2: Convert to fraction form
    1,278,854.32/1,916,998.44 = 436,830.16/x
  3. Step 3: Cross multiply
    1,278,854.32x = 1,916,998.44 × 436,830.16
  4. Step 4: Simplify right side
    1,278,854.32x = 837,402,735,264.95
  5. Step 5: Solve for x
    x = 837,402,735,264.95/1,278,854.32
  6. Step 6: Final answer
    x = 654,806.98

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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.