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Finding the Fourth Proportional to 586,556.80, 877,210.80 and 492,078.40

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Solution

The fourth proportional to 586,556.80, 877,210.80 and 492,078.40 is: 735,915.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,556.80 : 877,210.80 = 492,078.40 : x
  2. Step 2: Convert to fraction form
    586,556.80/877,210.80 = 492,078.40/x
  3. Step 3: Cross multiply
    586,556.80x = 877,210.80 × 492,078.40
  4. Step 4: Simplify right side
    586,556.80x = 431,656,486,926.72
  5. Step 5: Solve for x
    x = 431,656,486,926.72/586,556.80
  6. Step 6: Final answer
    x = 735,915.92

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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.