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Finding the Fourth Proportional to 616,009.80, 923,615.10 and 260,927.40

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Solution

The fourth proportional to 616,009.80, 923,615.10 and 260,927.40 is: 391,221.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,009.80 : 923,615.10 = 260,927.40 : x
  2. Step 2: Convert to fraction form
    616,009.80/923,615.10 = 260,927.40/x
  3. Step 3: Cross multiply
    616,009.80x = 923,615.10 × 260,927.40
  4. Step 4: Simplify right side
    616,009.80x = 240,996,486,643.74
  5. Step 5: Solve for x
    x = 240,996,486,643.74/616,009.80
  6. Step 6: Final answer
    x = 391,221.84

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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.