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Finding the Fourth Proportional to 604,872.90, 907,309.35 and 415,916.10

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Solution

The fourth proportional to 604,872.90, 907,309.35 and 415,916.10 is: 623,874.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,872.90 : 907,309.35 = 415,916.10 : x
  2. Step 2: Convert to fraction form
    604,872.90/907,309.35 = 415,916.10/x
  3. Step 3: Cross multiply
    604,872.90x = 907,309.35 × 415,916.10
  4. Step 4: Simplify right side
    604,872.90x = 377,364,566,345.54
  5. Step 5: Solve for x
    x = 377,364,566,345.54/604,872.90
  6. Step 6: Final answer
    x = 623,874.15

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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.