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Finding the Fourth Proportional to 528,074.40, 741,170.40 and 528,074.40

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Solution

The fourth proportional to 528,074.40, 741,170.40 and 528,074.40 is: 741,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,074.40 : 741,170.40 = 528,074.40 : x
  2. Step 2: Convert to fraction form
    528,074.40/741,170.40 = 528,074.40/x
  3. Step 3: Cross multiply
    528,074.40x = 741,170.40 × 528,074.40
  4. Step 4: Simplify right side
    528,074.40x = 391,393,114,277.76
  5. Step 5: Solve for x
    x = 391,393,114,277.76/528,074.40
  6. Step 6: Final answer
    x = 741,170.40

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Double scale
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Similar ratio
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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.