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Finding the Fourth Proportional to 472,079.02, 651,460.82 and 257,220.86

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Solution

The fourth proportional to 472,079.02, 651,460.82 and 257,220.86 is: 354,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,079.02 : 651,460.82 = 257,220.86 : x
  2. Step 2: Convert to fraction form
    472,079.02/651,460.82 = 257,220.86/x
  3. Step 3: Cross multiply
    472,079.02x = 651,460.82 × 257,220.86
  4. Step 4: Simplify right side
    472,079.02x = 167,569,312,376.71
  5. Step 5: Solve for x
    x = 167,569,312,376.71/472,079.02
  6. Step 6: Final answer
    x = 354,960.30

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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.