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Finding the Fourth Proportional to 584,014.40, 876,021.60 and 397,390.40

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Solution

The fourth proportional to 584,014.40, 876,021.60 and 397,390.40 is: 596,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,014.40 : 876,021.60 = 397,390.40 : x
  2. Step 2: Convert to fraction form
    584,014.40/876,021.60 = 397,390.40/x
  3. Step 3: Cross multiply
    584,014.40x = 876,021.60 × 397,390.40
  4. Step 4: Simplify right side
    584,014.40x = 348,122,574,032.64
  5. Step 5: Solve for x
    x = 348,122,574,032.64/584,014.40
  6. Step 6: Final answer
    x = 596,085.60

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Half scale
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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.