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Finding the Fourth Proportional to 292,506.24, 438,759.36 and 70,890.24

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Solution

The fourth proportional to 292,506.24, 438,759.36 and 70,890.24 is: 106,335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,506.24 : 438,759.36 = 70,890.24 : x
  2. Step 2: Convert to fraction form
    292,506.24/438,759.36 = 70,890.24/x
  3. Step 3: Cross multiply
    292,506.24x = 438,759.36 × 70,890.24
  4. Step 4: Simplify right side
    292,506.24x = 31,103,756,332.65
  5. Step 5: Solve for x
    x = 31,103,756,332.65/292,506.24
  6. Step 6: Final answer
    x = 106,335.36

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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.