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Finding the Fourth Proportional to 706,149.01, 974,465.11 and 400,253.55

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Solution

The fourth proportional to 706,149.01, 974,465.11 and 400,253.55 is: 552,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,149.01 : 974,465.11 = 400,253.55 : x
  2. Step 2: Convert to fraction form
    706,149.01/974,465.11 = 400,253.55/x
  3. Step 3: Cross multiply
    706,149.01x = 974,465.11 × 400,253.55
  4. Step 4: Simplify right side
    706,149.01x = 390,033,119,628.64
  5. Step 5: Solve for x
    x = 390,033,119,628.64/706,149.01
  6. Step 6: Final answer
    x = 552,338.27

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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.