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Finding the Fourth Proportional to 897,058, 1,345,587 and 615,722.32

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Solution

The fourth proportional to 897,058, 1,345,587 and 615,722.32 is: 923,583.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,058 : 1,345,587 = 615,722.32 : x
  2. Step 2: Convert to fraction form
    897,058/1,345,587 = 615,722.32/x
  3. Step 3: Cross multiply
    897,058x = 1,345,587 × 615,722.32
  4. Step 4: Simplify right side
    897,058x = 828,507,949,401.84
  5. Step 5: Solve for x
    x = 828,507,949,401.84/897,058
  6. Step 6: Final answer
    x = 923,583.48

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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.