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Finding the Fourth Proportional to 602,686.60, 831,652.45 and 357,629.04

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Solution

The fourth proportional to 602,686.60, 831,652.45 and 357,629.04 is: 493,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,686.60 : 831,652.45 = 357,629.04 : x
  2. Step 2: Convert to fraction form
    602,686.60/831,652.45 = 357,629.04/x
  3. Step 3: Cross multiply
    602,686.60x = 831,652.45 × 357,629.04
  4. Step 4: Simplify right side
    602,686.60x = 297,423,066,413.08
  5. Step 5: Solve for x
    x = 297,423,066,413.08/602,686.60
  6. Step 6: Final answer
    x = 493,495.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.