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Finding the Fourth Proportional to 514,437.80, 771,656.70 and 346,476.20

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Solution

The fourth proportional to 514,437.80, 771,656.70 and 346,476.20 is: 519,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,437.80 : 771,656.70 = 346,476.20 : x
  2. Step 2: Convert to fraction form
    514,437.80/771,656.70 = 346,476.20/x
  3. Step 3: Cross multiply
    514,437.80x = 771,656.70 × 346,476.20
  4. Step 4: Simplify right side
    514,437.80x = 267,360,681,120.54
  5. Step 5: Solve for x
    x = 267,360,681,120.54/514,437.80
  6. Step 6: Final answer
    x = 519,714.30

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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.