Home / 819,541.50-1,130,962.60-456,969.70

Finding the Fourth Proportional to 819,541.50, 1,130,962.60 and 456,969.70

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Solution

The fourth proportional to 819,541.50, 1,130,962.60 and 456,969.70 is: 630,615.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,541.50 : 1,130,962.60 = 456,969.70 : x
  2. Step 2: Convert to fraction form
    819,541.50/1,130,962.60 = 456,969.70/x
  3. Step 3: Cross multiply
    819,541.50x = 1,130,962.60 × 456,969.70
  4. Step 4: Simplify right side
    819,541.50x = 516,815,638,890.80
  5. Step 5: Solve for x
    x = 516,815,638,890.80/819,541.50
  6. Step 6: Final answer
    x = 630,615.58

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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.