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Finding the Fourth Proportional to 528,057.40, 741,146.60 and 528,057.40

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Solution

The fourth proportional to 528,057.40, 741,146.60 and 528,057.40 is: 741,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,057.40 : 741,146.60 = 528,057.40 : x
  2. Step 2: Convert to fraction form
    528,057.40/741,146.60 = 528,057.40/x
  3. Step 3: Cross multiply
    528,057.40x = 741,146.60 × 528,057.40
  4. Step 4: Simplify right side
    528,057.40x = 391,367,946,614.84
  5. Step 5: Solve for x
    x = 391,367,946,614.84/528,057.40
  6. Step 6: Final answer
    x = 741,146.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.