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Finding the Fourth Proportional to 652,360.80, 978,541.20 and 628,741.20

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Solution

The fourth proportional to 652,360.80, 978,541.20 and 628,741.20 is: 943,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,360.80 : 978,541.20 = 628,741.20 : x
  2. Step 2: Convert to fraction form
    652,360.80/978,541.20 = 628,741.20/x
  3. Step 3: Cross multiply
    652,360.80x = 978,541.20 × 628,741.20
  4. Step 4: Simplify right side
    652,360.80x = 615,249,168,337.44
  5. Step 5: Solve for x
    x = 615,249,168,337.44/652,360.80
  6. Step 6: Final answer
    x = 943,111.80

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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.