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Finding the Fourth Proportional to 474,393.36, 710,438.16 and 260,835.24

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Solution

The fourth proportional to 474,393.36, 710,438.16 and 260,835.24 is: 390,619.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,393.36 : 710,438.16 = 260,835.24 : x
  2. Step 2: Convert to fraction form
    474,393.36/710,438.16 = 260,835.24/x
  3. Step 3: Cross multiply
    474,393.36x = 710,438.16 × 260,835.24
  4. Step 4: Simplify right side
    474,393.36x = 185,307,307,968.76
  5. Step 5: Solve for x
    x = 185,307,307,968.76/474,393.36
  6. Step 6: Final answer
    x = 390,619.52

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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.