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Finding the Fourth Proportional to 540,963.63, 746,464.76 and 311,595.52

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Solution

The fourth proportional to 540,963.63, 746,464.76 and 311,595.52 is: 429,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,963.63 : 746,464.76 = 311,595.52 : x
  2. Step 2: Convert to fraction form
    540,963.63/746,464.76 = 311,595.52/x
  3. Step 3: Cross multiply
    540,963.63x = 746,464.76 × 311,595.52
  4. Step 4: Simplify right side
    540,963.63x = 232,595,075,053.88
  5. Step 5: Solve for x
    x = 232,595,075,053.88/540,963.63
  6. Step 6: Final answer
    x = 429,964.35

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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.