Home / 911,804.08-1,258,250.88-503,921.20

Finding the Fourth Proportional to 911,804.08, 1,258,250.88 and 503,921.20

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Solution

The fourth proportional to 911,804.08, 1,258,250.88 and 503,921.20 is: 695,389.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,804.08 : 1,258,250.88 = 503,921.20 : x
  2. Step 2: Convert to fraction form
    911,804.08/1,258,250.88 = 503,921.20/x
  3. Step 3: Cross multiply
    911,804.08x = 1,258,250.88 × 503,921.20
  4. Step 4: Simplify right side
    911,804.08x = 634,059,293,350.66
  5. Step 5: Solve for x
    x = 634,059,293,350.66/911,804.08
  6. Step 6: Final answer
    x = 695,389.84

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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.