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Finding the Fourth Proportional to 528,082.40, 792,123.60 and 403,666.40

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Solution

The fourth proportional to 528,082.40, 792,123.60 and 403,666.40 is: 605,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,082.40 : 792,123.60 = 403,666.40 : x
  2. Step 2: Convert to fraction form
    528,082.40/792,123.60 = 403,666.40/x
  3. Step 3: Cross multiply
    528,082.40x = 792,123.60 × 403,666.40
  4. Step 4: Simplify right side
    528,082.40x = 319,753,681,967.04
  5. Step 5: Solve for x
    x = 319,753,681,967.04/528,082.40
  6. Step 6: Final answer
    x = 605,499.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.