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Finding the Fourth Proportional to 706,236.56, 974,586.10 and 400,341.20

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Solution

The fourth proportional to 706,236.56, 974,586.10 and 400,341.20 is: 552,459.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,236.56 : 974,586.10 = 400,341.20 : x
  2. Step 2: Convert to fraction form
    706,236.56/974,586.10 = 400,341.20/x
  3. Step 3: Cross multiply
    706,236.56x = 974,586.10 × 400,341.20
  4. Step 4: Simplify right side
    706,236.56x = 390,166,968,777.32
  5. Step 5: Solve for x
    x = 390,166,968,777.32/706,236.56
  6. Step 6: Final answer
    x = 552,459.32

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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.