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Finding the Fourth Proportional to 720,459.40, 1,079,133.90 and 596,043.40

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Solution

The fourth proportional to 720,459.40, 1,079,133.90 and 596,043.40 is: 892,778.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,459.40 : 1,079,133.90 = 596,043.40 : x
  2. Step 2: Convert to fraction form
    720,459.40/1,079,133.90 = 596,043.40/x
  3. Step 3: Cross multiply
    720,459.40x = 1,079,133.90 × 596,043.40
  4. Step 4: Simplify right side
    720,459.40x = 643,210,638,811.26
  5. Step 5: Solve for x
    x = 643,210,638,811.26/720,459.40
  6. Step 6: Final answer
    x = 892,778.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.