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Finding the Fourth Proportional to 515,030.56, 710,750.69 and 285,597.53

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Solution

The fourth proportional to 515,030.56, 710,750.69 and 285,597.53 is: 394,129.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,030.56 : 710,750.69 = 285,597.53 : x
  2. Step 2: Convert to fraction form
    515,030.56/710,750.69 = 285,597.53/x
  3. Step 3: Cross multiply
    515,030.56x = 710,750.69 × 285,597.53
  4. Step 4: Simplify right side
    515,030.56x = 202,988,641,509.80
  5. Step 5: Solve for x
    x = 202,988,641,509.80/515,030.56
  6. Step 6: Final answer
    x = 394,129.31

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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.