Home / 628,609.40-942,914.10-572,512.85

Finding the Fourth Proportional to 628,609.40, 942,914.10 and 572,512.85

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Solution

The fourth proportional to 628,609.40, 942,914.10 and 572,512.85 is: 858,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,609.40 : 942,914.10 = 572,512.85 : x
  2. Step 2: Convert to fraction form
    628,609.40/942,914.10 = 572,512.85/x
  3. Step 3: Cross multiply
    628,609.40x = 942,914.10 × 572,512.85
  4. Step 4: Simplify right side
    628,609.40x = 539,830,438,696.19
  5. Step 5: Solve for x
    x = 539,830,438,696.19/628,609.40
  6. Step 6: Final answer
    x = 858,769.28

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Double scale
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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.