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Finding the Fourth Proportional to 604,904.10, 907,356.15 and 394,779.30

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Solution

The fourth proportional to 604,904.10, 907,356.15 and 394,779.30 is: 592,168.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,904.10 : 907,356.15 = 394,779.30 : x
  2. Step 2: Convert to fraction form
    604,904.10/907,356.15 = 394,779.30/x
  3. Step 3: Cross multiply
    604,904.10x = 907,356.15 × 394,779.30
  4. Step 4: Simplify right side
    604,904.10x = 358,205,425,747.70
  5. Step 5: Solve for x
    x = 358,205,425,747.70/604,904.10
  6. Step 6: Final answer
    x = 592,168.95

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Double scale
Find fourth proportional to 604,905.10, 907,357.65 and 394,780.30
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.