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Finding the Fourth Proportional to 604,823.10, 907,234.65 and 394,698.30

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Solution

The fourth proportional to 604,823.10, 907,234.65 and 394,698.30 is: 592,047.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,823.10 : 907,234.65 = 394,698.30 : x
  2. Step 2: Convert to fraction form
    604,823.10/907,234.65 = 394,698.30/x
  3. Step 3: Cross multiply
    604,823.10x = 907,234.65 × 394,698.30
  4. Step 4: Simplify right side
    604,823.10x = 358,083,974,056.10
  5. Step 5: Solve for x
    x = 358,083,974,056.10/604,823.10
  6. Step 6: Final answer
    x = 592,047.45

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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.