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Finding the Fourth Proportional to 528,053.40, 741,141 and 528,053.40

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Solution

The fourth proportional to 528,053.40, 741,141 and 528,053.40 is: 741,141

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,053.40 : 741,141 = 528,053.40 : x
  2. Step 2: Convert to fraction form
    528,053.40/741,141 = 528,053.40/x
  3. Step 3: Cross multiply
    528,053.40x = 741,141 × 528,053.40
  4. Step 4: Simplify right side
    528,053.40x = 391,362,024,929.40
  5. Step 5: Solve for x
    x = 391,362,024,929.40/528,053.40
  6. Step 6: Final answer
    x = 741,141

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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.