Home / 1,385,168.60-2,077,752.90-438,613.40

Finding the Fourth Proportional to 1,385,168.60, 2,077,752.90 and 438,613.40

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Solution

The fourth proportional to 1,385,168.60, 2,077,752.90 and 438,613.40 is: 657,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,168.60 : 2,077,752.90 = 438,613.40 : x
  2. Step 2: Convert to fraction form
    1,385,168.60/2,077,752.90 = 438,613.40/x
  3. Step 3: Cross multiply
    1,385,168.60x = 2,077,752.90 × 438,613.40
  4. Step 4: Simplify right side
    1,385,168.60x = 911,330,263,828.86
  5. Step 5: Solve for x
    x = 911,330,263,828.86/1,385,168.60
  6. Step 6: Final answer
    x = 657,920.10

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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.