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Finding the Fourth Proportional to 506,534.04, 699,034.25 and 288,774.92

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Solution

The fourth proportional to 506,534.04, 699,034.25 and 288,774.92 is: 398,519.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,534.04 : 699,034.25 = 288,774.92 : x
  2. Step 2: Convert to fraction form
    506,534.04/699,034.25 = 288,774.92/x
  3. Step 3: Cross multiply
    506,534.04x = 699,034.25 × 288,774.92
  4. Step 4: Simplify right side
    506,534.04x = 201,863,554,681.96
  5. Step 5: Solve for x
    x = 201,863,554,681.96/506,534.04
  6. Step 6: Final answer
    x = 398,519.23

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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.