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Finding the Fourth Proportional to 604,820.10, 907,230.15 and 424,416.90

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Solution

The fourth proportional to 604,820.10, 907,230.15 and 424,416.90 is: 636,625.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,820.10 : 907,230.15 = 424,416.90 : x
  2. Step 2: Convert to fraction form
    604,820.10/907,230.15 = 424,416.90/x
  3. Step 3: Cross multiply
    604,820.10x = 907,230.15 × 424,416.90
  4. Step 4: Simplify right side
    604,820.10x = 385,043,807,849.54
  5. Step 5: Solve for x
    x = 385,043,807,849.54/604,820.10
  6. Step 6: Final answer
    x = 636,625.35

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.