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Finding the Fourth Proportional to 514,393.77, 710,049.75 and 418,734.39

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Solution

The fourth proportional to 514,393.77, 710,049.75 and 418,734.39 is: 578,005.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,393.77 : 710,049.75 = 418,734.39 : x
  2. Step 2: Convert to fraction form
    514,393.77/710,049.75 = 418,734.39/x
  3. Step 3: Cross multiply
    514,393.77x = 710,049.75 × 418,734.39
  4. Step 4: Simplify right side
    514,393.77x = 297,322,248,935.90
  5. Step 5: Solve for x
    x = 297,322,248,935.90/514,393.77
  6. Step 6: Final answer
    x = 578,005.15

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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.