Home / 866,919.06-1,196,411.40-485,068.86

Finding the Fourth Proportional to 866,919.06, 1,196,411.40 and 485,068.86

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Solution

The fourth proportional to 866,919.06, 1,196,411.40 and 485,068.86 is: 669,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,919.06 : 1,196,411.40 = 485,068.86 : x
  2. Step 2: Convert to fraction form
    866,919.06/1,196,411.40 = 485,068.86/x
  3. Step 3: Cross multiply
    866,919.06x = 1,196,411.40 × 485,068.86
  4. Step 4: Simplify right side
    866,919.06x = 580,341,913,889.00
  5. Step 5: Solve for x
    x = 580,341,913,889.00/866,919.06
  6. Step 6: Final answer
    x = 669,430.33

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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.