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Finding the Fourth Proportional to 462,215.70, 637,856.32 and 255,482.70

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Solution

The fourth proportional to 462,215.70, 637,856.32 and 255,482.70 is: 352,565.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,215.70 : 637,856.32 = 255,482.70 : x
  2. Step 2: Convert to fraction form
    462,215.70/637,856.32 = 255,482.70/x
  3. Step 3: Cross multiply
    462,215.70x = 637,856.32 × 255,482.70
  4. Step 4: Simplify right side
    462,215.70x = 162,961,254,845.66
  5. Step 5: Solve for x
    x = 162,961,254,845.66/462,215.70
  6. Step 6: Final answer
    x = 352,565.38

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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.