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Finding the Fourth Proportional to 475,571.91, 656,280.77 and 260,713.74

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Solution

The fourth proportional to 475,571.91, 656,280.77 and 260,713.74 is: 359,780.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,571.91 : 656,280.77 = 260,713.74 : x
  2. Step 2: Convert to fraction form
    475,571.91/656,280.77 = 260,713.74/x
  3. Step 3: Cross multiply
    475,571.91x = 656,280.77 × 260,713.74
  4. Step 4: Simplify right side
    475,571.91x = 171,101,411,407.16
  5. Step 5: Solve for x
    x = 171,101,411,407.16/475,571.91
  6. Step 6: Final answer
    x = 359,780.32

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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.