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Finding the Fourth Proportional to 659,657.34, 910,328.88 and 357,851.34

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Solution

The fourth proportional to 659,657.34, 910,328.88 and 357,851.34 is: 493,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,657.34 : 910,328.88 = 357,851.34 : x
  2. Step 2: Convert to fraction form
    659,657.34/910,328.88 = 357,851.34/x
  3. Step 3: Cross multiply
    659,657.34x = 910,328.88 × 357,851.34
  4. Step 4: Simplify right side
    659,657.34x = 325,762,409,548.70
  5. Step 5: Solve for x
    x = 325,762,409,548.70/659,657.34
  6. Step 6: Final answer
    x = 493,835.80

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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.