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Finding the Fourth Proportional to 662,657.06, 914,442.74 and 404,965.13

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Solution

The fourth proportional to 662,657.06, 914,442.74 and 404,965.13 is: 558,837.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,657.06 : 914,442.74 = 404,965.13 : x
  2. Step 2: Convert to fraction form
    662,657.06/914,442.74 = 404,965.13/x
  3. Step 3: Cross multiply
    662,657.06x = 914,442.74 × 404,965.13
  4. Step 4: Simplify right side
    662,657.06x = 370,317,421,056.83
  5. Step 5: Solve for x
    x = 370,317,421,056.83/662,657.06
  6. Step 6: Final answer
    x = 558,837.21

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Double scale
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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.