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Finding the Fourth Proportional to 604,812.10, 907,218.15 and 394,687.30

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Solution

The fourth proportional to 604,812.10, 907,218.15 and 394,687.30 is: 592,030.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,812.10 : 907,218.15 = 394,687.30 : x
  2. Step 2: Convert to fraction form
    604,812.10/907,218.15 = 394,687.30/x
  3. Step 3: Cross multiply
    604,812.10x = 907,218.15 × 394,687.30
  4. Step 4: Simplify right side
    604,812.10x = 358,067,482,134.50
  5. Step 5: Solve for x
    x = 358,067,482,134.50/604,812.10
  6. Step 6: Final answer
    x = 592,030.95

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Half scale
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Double scale
Find fourth proportional to 604,813.10, 907,219.65 and 394,688.30
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.