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Finding the Fourth Proportional to 620,036.40, 930,054.60 and 616,099.80

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Solution

The fourth proportional to 620,036.40, 930,054.60 and 616,099.80 is: 924,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,036.40 : 930,054.60 = 616,099.80 : x
  2. Step 2: Convert to fraction form
    620,036.40/930,054.60 = 616,099.80/x
  3. Step 3: Cross multiply
    620,036.40x = 930,054.60 × 616,099.80
  4. Step 4: Simplify right side
    620,036.40x = 573,006,453,049.08
  5. Step 5: Solve for x
    x = 573,006,453,049.08/620,036.40
  6. Step 6: Final answer
    x = 924,149.70

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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.