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Finding the Fourth Proportional to 894,710.25, 1,234,700.15 and 492,302.25

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Solution

The fourth proportional to 894,710.25, 1,234,700.15 and 492,302.25 is: 679,377.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,710.25 : 1,234,700.15 = 492,302.25 : x
  2. Step 2: Convert to fraction form
    894,710.25/1,234,700.15 = 492,302.25/x
  3. Step 3: Cross multiply
    894,710.25x = 1,234,700.15 × 492,302.25
  4. Step 4: Simplify right side
    894,710.25x = 607,845,659,458.83
  5. Step 5: Solve for x
    x = 607,845,659,458.83/894,710.25
  6. Step 6: Final answer
    x = 679,377.11

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Half scale
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Double scale
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Similar ratio
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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.