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Finding the Fourth Proportional to 706,430.66, 974,844.64 and 400,527.62

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Solution

The fourth proportional to 706,430.66, 974,844.64 and 400,527.62 is: 552,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,430.66 : 974,844.64 = 400,527.62 : x
  2. Step 2: Convert to fraction form
    706,430.66/974,844.64 = 400,527.62/x
  3. Step 3: Cross multiply
    706,430.66x = 974,844.64 × 400,527.62
  4. Step 4: Simplify right side
    706,430.66x = 390,452,202,811.06
  5. Step 5: Solve for x
    x = 390,452,202,811.06/706,430.66
  6. Step 6: Final answer
    x = 552,711.30

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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.