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Finding the Fourth Proportional to 605,117.60, 907,676.40 and 577,561.40

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Solution

The fourth proportional to 605,117.60, 907,676.40 and 577,561.40 is: 866,342.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,117.60 : 907,676.40 = 577,561.40 : x
  2. Step 2: Convert to fraction form
    605,117.60/907,676.40 = 577,561.40/x
  3. Step 3: Cross multiply
    605,117.60x = 907,676.40 × 577,561.40
  4. Step 4: Simplify right side
    605,117.60x = 524,238,852,330.96
  5. Step 5: Solve for x
    x = 524,238,852,330.96/605,117.60
  6. Step 6: Final answer
    x = 866,342.10

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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.