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Finding the Fourth Proportional to 292,032.60, 438,048.90 and 262,541.40

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Solution

The fourth proportional to 292,032.60, 438,048.90 and 262,541.40 is: 393,812.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,032.60 : 438,048.90 = 262,541.40 : x
  2. Step 2: Convert to fraction form
    292,032.60/438,048.90 = 262,541.40/x
  3. Step 3: Cross multiply
    292,032.60x = 438,048.90 × 262,541.40
  4. Step 4: Simplify right side
    292,032.60x = 115,005,971,474.46
  5. Step 5: Solve for x
    x = 115,005,971,474.46/292,032.60
  6. Step 6: Final answer
    x = 393,812.10

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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.