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Finding the Fourth Proportional to 464,373.42, 640,563.32 and 292,018.68

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Solution

The fourth proportional to 464,373.42, 640,563.32 and 292,018.68 is: 402,814.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,373.42 : 640,563.32 = 292,018.68 : x
  2. Step 2: Convert to fraction form
    464,373.42/640,563.32 = 292,018.68/x
  3. Step 3: Cross multiply
    464,373.42x = 640,563.32 × 292,018.68
  4. Step 4: Simplify right side
    464,373.42x = 187,056,455,892.86
  5. Step 5: Solve for x
    x = 187,056,455,892.86/464,373.42
  6. Step 6: Final answer
    x = 402,814.74

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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.