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Finding the Fourth Proportional to 514,213.01, 709,804.42 and 310,272.53

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Solution

The fourth proportional to 514,213.01, 709,804.42 and 310,272.53 is: 428,291.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,213.01 : 709,804.42 = 310,272.53 : x
  2. Step 2: Convert to fraction form
    514,213.01/709,804.42 = 310,272.53/x
  3. Step 3: Cross multiply
    514,213.01x = 709,804.42 × 310,272.53
  4. Step 4: Simplify right side
    514,213.01x = 220,232,808,873.88
  5. Step 5: Solve for x
    x = 220,232,808,873.88/514,213.01
  6. Step 6: Final answer
    x = 428,291.01

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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.