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Finding the Fourth Proportional to 346,708.90, 520,063.35 and 97,390.90

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Solution

The fourth proportional to 346,708.90, 520,063.35 and 97,390.90 is: 146,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,708.90 : 520,063.35 = 97,390.90 : x
  2. Step 2: Convert to fraction form
    346,708.90/520,063.35 = 97,390.90/x
  3. Step 3: Cross multiply
    346,708.90x = 520,063.35 × 97,390.90
  4. Step 4: Simplify right side
    346,708.90x = 50,649,437,713.52
  5. Step 5: Solve for x
    x = 50,649,437,713.52/346,708.90
  6. Step 6: Final answer
    x = 146,086.35

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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.