Home / 830,518.80-1,245,000.60-650,504.40

Finding the Fourth Proportional to 830,518.80, 1,245,000.60 and 650,504.40

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Solution

The fourth proportional to 830,518.80, 1,245,000.60 and 650,504.40 is: 975,147.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,518.80 : 1,245,000.60 = 650,504.40 : x
  2. Step 2: Convert to fraction form
    830,518.80/1,245,000.60 = 650,504.40/x
  3. Step 3: Cross multiply
    830,518.80x = 1,245,000.60 × 650,504.40
  4. Step 4: Simplify right side
    830,518.80x = 809,878,368,302.64
  5. Step 5: Solve for x
    x = 809,878,368,302.64/830,518.80
  6. Step 6: Final answer
    x = 975,147.54

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1.5x scale

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.