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Finding the Fourth Proportional to 368,897.40, 553,346.10 and 337,404.60

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Solution

The fourth proportional to 368,897.40, 553,346.10 and 337,404.60 is: 506,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,897.40 : 553,346.10 = 337,404.60 : x
  2. Step 2: Convert to fraction form
    368,897.40/553,346.10 = 337,404.60/x
  3. Step 3: Cross multiply
    368,897.40x = 553,346.10 × 337,404.60
  4. Step 4: Simplify right side
    368,897.40x = 186,701,519,532.06
  5. Step 5: Solve for x
    x = 186,701,519,532.06/368,897.40
  6. Step 6: Final answer
    x = 506,106.90

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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.