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Finding the Fourth Proportional to 707,221.44, 975,986.64 and 435,446.10

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Solution

The fourth proportional to 707,221.44, 975,986.64 and 435,446.10 is: 600,928.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,221.44 : 975,986.64 = 435,446.10 : x
  2. Step 2: Convert to fraction form
    707,221.44/975,986.64 = 435,446.10/x
  3. Step 3: Cross multiply
    707,221.44x = 975,986.64 × 435,446.10
  4. Step 4: Simplify right side
    707,221.44x = 424,989,576,040.10
  5. Step 5: Solve for x
    x = 424,989,576,040.10/707,221.44
  6. Step 6: Final answer
    x = 600,928.58

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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.