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Finding the Fourth Proportional to 670,056.36, 924,686.78 and 364,138.80

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Solution

The fourth proportional to 670,056.36, 924,686.78 and 364,138.80 is: 502,516.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,056.36 : 924,686.78 = 364,138.80 : x
  2. Step 2: Convert to fraction form
    670,056.36/924,686.78 = 364,138.80/x
  3. Step 3: Cross multiply
    670,056.36x = 924,686.78 × 364,138.80
  4. Step 4: Simplify right side
    670,056.36x = 336,714,334,445.06
  5. Step 5: Solve for x
    x = 336,714,334,445.06/670,056.36
  6. Step 6: Final answer
    x = 502,516.44

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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.