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Finding the Fourth Proportional to 627,803.06, 866,312.48 and 348,407.32

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Solution

The fourth proportional to 627,803.06, 866,312.48 and 348,407.32 is: 480,771.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,803.06 : 866,312.48 = 348,407.32 : x
  2. Step 2: Convert to fraction form
    627,803.06/866,312.48 = 348,407.32/x
  3. Step 3: Cross multiply
    627,803.06x = 866,312.48 × 348,407.32
  4. Step 4: Simplify right side
    627,803.06x = 301,829,609,439.35
  5. Step 5: Solve for x
    x = 301,829,609,439.35/627,803.06
  6. Step 6: Final answer
    x = 480,771.17

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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.