Home / 911,705.03-1,258,228.70-503,886.50

Finding the Fourth Proportional to 911,705.03, 1,258,228.70 and 503,886.50

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Solution

The fourth proportional to 911,705.03, 1,258,228.70 and 503,886.50 is: 695,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,705.03 : 1,258,228.70 = 503,886.50 : x
  2. Step 2: Convert to fraction form
    911,705.03/1,258,228.70 = 503,886.50/x
  3. Step 3: Cross multiply
    911,705.03x = 1,258,228.70 × 503,886.50
  4. Step 4: Simplify right side
    911,705.03x = 634,004,455,842.55
  5. Step 5: Solve for x
    x = 634,004,455,842.55/911,705.03
  6. Step 6: Final answer
    x = 695,405.24

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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.