Home / 678,766.40-1,018,149.60-616,558.40

Finding the Fourth Proportional to 678,766.40, 1,018,149.60 and 616,558.40

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Solution

The fourth proportional to 678,766.40, 1,018,149.60 and 616,558.40 is: 924,837.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,766.40 : 1,018,149.60 = 616,558.40 : x
  2. Step 2: Convert to fraction form
    678,766.40/1,018,149.60 = 616,558.40/x
  3. Step 3: Cross multiply
    678,766.40x = 1,018,149.60 × 616,558.40
  4. Step 4: Simplify right side
    678,766.40x = 627,748,688,336.64
  5. Step 5: Solve for x
    x = 627,748,688,336.64/678,766.40
  6. Step 6: Final answer
    x = 924,837.60

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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.