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Finding the Fourth Proportional to 604,862.20, 907,293.30 and 289,934.20

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Solution

The fourth proportional to 604,862.20, 907,293.30 and 289,934.20 is: 434,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,862.20 : 907,293.30 = 289,934.20 : x
  2. Step 2: Convert to fraction form
    604,862.20/907,293.30 = 289,934.20/x
  3. Step 3: Cross multiply
    604,862.20x = 907,293.30 × 289,934.20
  4. Step 4: Simplify right side
    604,862.20x = 263,055,357,100.86
  5. Step 5: Solve for x
    x = 263,055,357,100.86/604,862.20
  6. Step 6: Final answer
    x = 434,901.30

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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.