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Finding the Fourth Proportional to 360,963.47, 540,666.80 and 339,740.94

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Solution

The fourth proportional to 360,963.47, 540,666.80 and 339,740.94 is: 508,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,963.47 : 540,666.80 = 339,740.94 : x
  2. Step 2: Convert to fraction form
    360,963.47/540,666.80 = 339,740.94/x
  3. Step 3: Cross multiply
    360,963.47x = 540,666.80 × 339,740.94
  4. Step 4: Simplify right side
    360,963.47x = 183,686,646,826.67
  5. Step 5: Solve for x
    x = 183,686,646,826.67/360,963.47
  6. Step 6: Final answer
    x = 508,878.78

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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.