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Finding the Fourth Proportional to 590,890.02, 815,417.14 and 361,430.45

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Solution

The fourth proportional to 590,890.02, 815,417.14 and 361,430.45 is: 498,767.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,890.02 : 815,417.14 = 361,430.45 : x
  2. Step 2: Convert to fraction form
    590,890.02/815,417.14 = 361,430.45/x
  3. Step 3: Cross multiply
    590,890.02x = 815,417.14 × 361,430.45
  4. Step 4: Simplify right side
    590,890.02x = 294,716,583,847.91
  5. Step 5: Solve for x
    x = 294,716,583,847.91/590,890.02
  6. Step 6: Final answer
    x = 498,767.24

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1.5x scale

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.