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Finding the Fourth Proportional to 528,056.90, 741,145.90 and 528,056.90

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Solution

The fourth proportional to 528,056.90, 741,145.90 and 528,056.90 is: 741,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,056.90 : 741,145.90 = 528,056.90 : x
  2. Step 2: Convert to fraction form
    528,056.90/741,145.90 = 528,056.90/x
  3. Step 3: Cross multiply
    528,056.90x = 741,145.90 × 528,056.90
  4. Step 4: Simplify right side
    528,056.90x = 391,367,206,401.71
  5. Step 5: Solve for x
    x = 391,367,206,401.71/528,056.90
  6. Step 6: Final answer
    x = 741,145.90

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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.