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Finding the Fourth Proportional to 211,407.84, 291,573.40 and 185,859.92

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Solution

The fourth proportional to 211,407.84, 291,573.40 and 185,859.92 is: 256,337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,407.84 : 291,573.40 = 185,859.92 : x
  2. Step 2: Convert to fraction form
    211,407.84/291,573.40 = 185,859.92/x
  3. Step 3: Cross multiply
    211,407.84x = 291,573.40 × 185,859.92
  4. Step 4: Simplify right side
    211,407.84x = 54,191,808,798.13
  5. Step 5: Solve for x
    x = 54,191,808,798.13/211,407.84
  6. Step 6: Final answer
    x = 256,337.74

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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.