Home / 528,056.40-741,145.20-528,056.40

Finding the Fourth Proportional to 528,056.40, 741,145.20 and 528,056.40

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Solution

The fourth proportional to 528,056.40, 741,145.20 and 528,056.40 is: 741,145.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,056.40 : 741,145.20 = 528,056.40 : x
  2. Step 2: Convert to fraction form
    528,056.40/741,145.20 = 528,056.40/x
  3. Step 3: Cross multiply
    528,056.40x = 741,145.20 × 528,056.40
  4. Step 4: Simplify right side
    528,056.40x = 391,366,466,189.28
  5. Step 5: Solve for x
    x = 391,366,466,189.28/528,056.40
  6. Step 6: Final answer
    x = 741,145.20

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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.