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Finding the Fourth Proportional to 572,353.60, 858,530.40 and 292,417.60

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Solution

The fourth proportional to 572,353.60, 858,530.40 and 292,417.60 is: 438,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,353.60 : 858,530.40 = 292,417.60 : x
  2. Step 2: Convert to fraction form
    572,353.60/858,530.40 = 292,417.60/x
  3. Step 3: Cross multiply
    572,353.60x = 858,530.40 × 292,417.60
  4. Step 4: Simplify right side
    572,353.60x = 251,049,399,095.04
  5. Step 5: Solve for x
    x = 251,049,399,095.04/572,353.60
  6. Step 6: Final answer
    x = 438,626.40

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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.