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Finding the Fourth Proportional to 710,429.40, 1,064,710.98 and 336,559.32

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Solution

The fourth proportional to 710,429.40, 1,064,710.98 and 336,559.32 is: 504,396.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,429.40 : 1,064,710.98 = 336,559.32 : x
  2. Step 2: Convert to fraction form
    710,429.40/1,064,710.98 = 336,559.32/x
  3. Step 3: Cross multiply
    710,429.40x = 1,064,710.98 × 336,559.32
  4. Step 4: Simplify right side
    710,429.40x = 358,338,403,425.33
  5. Step 5: Solve for x
    x = 358,338,403,425.33/710,429.40
  6. Step 6: Final answer
    x = 504,396.92

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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.