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Finding the Fourth Proportional to 635,526.56, 876,660.60 and 380,730.16

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Solution

The fourth proportional to 635,526.56, 876,660.60 and 380,730.16 is: 525,188.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,526.56 : 876,660.60 = 380,730.16 : x
  2. Step 2: Convert to fraction form
    635,526.56/876,660.60 = 380,730.16/x
  3. Step 3: Cross multiply
    635,526.56x = 876,660.60 × 380,730.16
  4. Step 4: Simplify right side
    635,526.56x = 333,771,130,503.70
  5. Step 5: Solve for x
    x = 333,771,130,503.70/635,526.56
  6. Step 6: Final answer
    x = 525,188.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.