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Finding the Fourth Proportional to 472,189.65, 651,602.72 and 257,325.07

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Solution

The fourth proportional to 472,189.65, 651,602.72 and 257,325.07 is: 355,098.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,189.65 : 651,602.72 = 257,325.07 : x
  2. Step 2: Convert to fraction form
    472,189.65/651,602.72 = 257,325.07/x
  3. Step 3: Cross multiply
    472,189.65x = 651,602.72 × 257,325.07
  4. Step 4: Simplify right side
    472,189.65x = 167,673,715,536.19
  5. Step 5: Solve for x
    x = 167,673,715,536.19/472,189.65
  6. Step 6: Final answer
    x = 355,098.24

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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.