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Finding the Fourth Proportional to 472,411.63, 651,526.96 and 399,182.82

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Solution

The fourth proportional to 472,411.63, 651,526.96 and 399,182.82 is: 550,533.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,411.63 : 651,526.96 = 399,182.82 : x
  2. Step 2: Convert to fraction form
    472,411.63/651,526.96 = 399,182.82/x
  3. Step 3: Cross multiply
    472,411.63x = 651,526.96 × 399,182.82
  4. Step 4: Simplify right side
    472,411.63x = 260,078,369,198.83
  5. Step 5: Solve for x
    x = 260,078,369,198.83/472,411.63
  6. Step 6: Final answer
    x = 550,533.38

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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.