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Finding the Fourth Proportional to 528,048.90, 741,134.70 and 528,048.90

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Solution

The fourth proportional to 528,048.90, 741,134.70 and 528,048.90 is: 741,134.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,048.90 : 741,134.70 = 528,048.90 : x
  2. Step 2: Convert to fraction form
    528,048.90/741,134.70 = 528,048.90/x
  3. Step 3: Cross multiply
    528,048.90x = 741,134.70 × 528,048.90
  4. Step 4: Simplify right side
    528,048.90x = 391,355,363,086.83
  5. Step 5: Solve for x
    x = 391,355,363,086.83/528,048.90
  6. Step 6: Final answer
    x = 741,134.70

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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.