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Finding the Fourth Proportional to 972,854.60, 1,458,504.30 and 411,427.40

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Solution

The fourth proportional to 972,854.60, 1,458,504.30 and 411,427.40 is: 616,812.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,854.60 : 1,458,504.30 = 411,427.40 : x
  2. Step 2: Convert to fraction form
    972,854.60/1,458,504.30 = 411,427.40/x
  3. Step 3: Cross multiply
    972,854.60x = 1,458,504.30 × 411,427.40
  4. Step 4: Simplify right side
    972,854.60x = 600,068,632,037.82
  5. Step 5: Solve for x
    x = 600,068,632,037.82/972,854.60
  6. Step 6: Final answer
    x = 616,812.25

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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.