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Finding the Fourth Proportional to 514,625.76, 709,804.08 and 353,507.04

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Solution

The fourth proportional to 514,625.76, 709,804.08 and 353,507.04 is: 487,579.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,625.76 : 709,804.08 = 353,507.04 : x
  2. Step 2: Convert to fraction form
    514,625.76/709,804.08 = 353,507.04/x
  3. Step 3: Cross multiply
    514,625.76x = 709,804.08 × 353,507.04
  4. Step 4: Simplify right side
    514,625.76x = 250,920,739,300.72
  5. Step 5: Solve for x
    x = 250,920,739,300.72/514,625.76
  6. Step 6: Final answer
    x = 487,579.05

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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.