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Finding the Fourth Proportional to 459,038.72, 633,476.88 and 255,108.72

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Solution

The fourth proportional to 459,038.72, 633,476.88 and 255,108.72 is: 352,051.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,038.72 : 633,476.88 = 255,108.72 : x
  2. Step 2: Convert to fraction form
    459,038.72/633,476.88 = 255,108.72/x
  3. Step 3: Cross multiply
    459,038.72x = 633,476.88 × 255,108.72
  4. Step 4: Simplify right side
    459,038.72x = 161,605,476,006.39
  5. Step 5: Solve for x
    x = 161,605,476,006.39/459,038.72
  6. Step 6: Final answer
    x = 352,051.95

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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.