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Finding the Fourth Proportional to 472,158.66, 651,559.98 and 257,294.13

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Solution

The fourth proportional to 472,158.66, 651,559.98 and 257,294.13 is: 355,055.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,158.66 : 651,559.98 = 257,294.13 : x
  2. Step 2: Convert to fraction form
    472,158.66/651,559.98 = 257,294.13/x
  3. Step 3: Cross multiply
    472,158.66x = 651,559.98 × 257,294.13
  4. Step 4: Simplify right side
    472,158.66x = 167,642,558,196.92
  5. Step 5: Solve for x
    x = 167,642,558,196.92/472,158.66
  6. Step 6: Final answer
    x = 355,055.56

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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.