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Finding the Fourth Proportional to 604,815.60, 907,223.40 and 580,239.60

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Solution

The fourth proportional to 604,815.60, 907,223.40 and 580,239.60 is: 870,359.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,815.60 : 907,223.40 = 580,239.60 : x
  2. Step 2: Convert to fraction form
    604,815.60/907,223.40 = 580,239.60/x
  3. Step 3: Cross multiply
    604,815.60x = 907,223.40 × 580,239.60
  4. Step 4: Simplify right side
    604,815.60x = 526,406,942,726.64
  5. Step 5: Solve for x
    x = 526,406,942,726.64/604,815.60
  6. Step 6: Final answer
    x = 870,359.40

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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.