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Finding the Fourth Proportional to 706,235.56, 974,584.72 and 400,340.20

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Solution

The fourth proportional to 706,235.56, 974,584.72 and 400,340.20 is: 552,457.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,235.56 : 974,584.72 = 400,340.20 : x
  2. Step 2: Convert to fraction form
    706,235.56/974,584.72 = 400,340.20/x
  3. Step 3: Cross multiply
    706,235.56x = 974,584.72 × 400,340.20
  4. Step 4: Simplify right side
    706,235.56x = 390,165,441,721.74
  5. Step 5: Solve for x
    x = 390,165,441,721.74/706,235.56
  6. Step 6: Final answer
    x = 552,457.94

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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.