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Finding the Fourth Proportional to 867,648.08, 1,303,470.12 and 615,554.48

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Solution

The fourth proportional to 867,648.08, 1,303,470.12 and 615,554.48 is: 924,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,648.08 : 1,303,470.12 = 615,554.48 : x
  2. Step 2: Convert to fraction form
    867,648.08/1,303,470.12 = 615,554.48/x
  3. Step 3: Cross multiply
    867,648.08x = 1,303,470.12 × 615,554.48
  4. Step 4: Simplify right side
    867,648.08x = 802,356,871,912.14
  5. Step 5: Solve for x
    x = 802,356,871,912.14/867,648.08
  6. Step 6: Final answer
    x = 924,749.20

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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.