Home / 678,768.40-1,018,152.60-616,560.40

Finding the Fourth Proportional to 678,768.40, 1,018,152.60 and 616,560.40

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Solution

The fourth proportional to 678,768.40, 1,018,152.60 and 616,560.40 is: 924,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,768.40 : 1,018,152.60 = 616,560.40 : x
  2. Step 2: Convert to fraction form
    678,768.40/1,018,152.60 = 616,560.40/x
  3. Step 3: Cross multiply
    678,768.40x = 1,018,152.60 × 616,560.40
  4. Step 4: Simplify right side
    678,768.40x = 627,752,574,317.04
  5. Step 5: Solve for x
    x = 627,752,574,317.04/678,768.40
  6. Step 6: Final answer
    x = 924,840.60

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Similar ratio
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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.