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Finding the Fourth Proportional to 472,013.55, 651,376.76 and 257,152.95

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Solution

The fourth proportional to 472,013.55, 651,376.76 and 257,152.95 is: 354,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,013.55 : 651,376.76 = 257,152.95 : x
  2. Step 2: Convert to fraction form
    472,013.55/651,376.76 = 257,152.95/x
  3. Step 3: Cross multiply
    472,013.55x = 651,376.76 × 257,152.95
  4. Step 4: Simplify right side
    472,013.55x = 167,503,454,109.68
  5. Step 5: Solve for x
    x = 167,503,454,109.68/472,013.55
  6. Step 6: Final answer
    x = 354,870.01

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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.