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Finding the Fourth Proportional to 534,386.76, 737,953.20 and 343,731.12

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Solution

The fourth proportional to 534,386.76, 737,953.20 and 343,731.12 is: 474,670.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,386.76 : 737,953.20 = 343,731.12 : x
  2. Step 2: Convert to fraction form
    534,386.76/737,953.20 = 343,731.12/x
  3. Step 3: Cross multiply
    534,386.76x = 737,953.20 × 343,731.12
  4. Step 4: Simplify right side
    534,386.76x = 253,657,479,943.58
  5. Step 5: Solve for x
    x = 253,657,479,943.58/534,386.76
  6. Step 6: Final answer
    x = 474,670.22

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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.