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Finding the Fourth Proportional to 995,302.40, 1,373,510.40 and 565,548.80

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Solution

The fourth proportional to 995,302.40, 1,373,510.40 and 565,548.80 is: 780,453.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,302.40 : 1,373,510.40 = 565,548.80 : x
  2. Step 2: Convert to fraction form
    995,302.40/1,373,510.40 = 565,548.80/x
  3. Step 3: Cross multiply
    995,302.40x = 1,373,510.40 × 565,548.80
  4. Step 4: Simplify right side
    995,302.40x = 776,787,158,507.52
  5. Step 5: Solve for x
    x = 776,787,158,507.52/995,302.40
  6. Step 6: Final answer
    x = 780,453.42

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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.