Home / 911,785.77-1,258,289.51-503,914.05

Finding the Fourth Proportional to 911,785.77, 1,258,289.51 and 503,914.05

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Solution

The fourth proportional to 911,785.77, 1,258,289.51 and 503,914.05 is: 695,415.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,785.77 : 1,258,289.51 = 503,914.05 : x
  2. Step 2: Convert to fraction form
    911,785.77/1,258,289.51 = 503,914.05/x
  3. Step 3: Cross multiply
    911,785.77x = 1,258,289.51 × 503,914.05
  4. Step 4: Simplify right side
    911,785.77x = 634,069,760,537.05
  5. Step 5: Solve for x
    x = 634,069,760,537.05/911,785.77
  6. Step 6: Final answer
    x = 695,415.28

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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.