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Finding the Fourth Proportional to 618,005.80, 927,699.90 and 577,397.80

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Solution

The fourth proportional to 618,005.80, 927,699.90 and 577,397.80 is: 866,742.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,005.80 : 927,699.90 = 577,397.80 : x
  2. Step 2: Convert to fraction form
    618,005.80/927,699.90 = 577,397.80/x
  3. Step 3: Cross multiply
    618,005.80x = 927,699.90 × 577,397.80
  4. Step 4: Simplify right side
    618,005.80x = 535,651,881,320.22
  5. Step 5: Solve for x
    x = 535,651,881,320.22/618,005.80
  6. Step 6: Final answer
    x = 866,742.48

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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.