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Finding the Fourth Proportional to 368,897.60, 553,346.40 and 366,132.80

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Solution

The fourth proportional to 368,897.60, 553,346.40 and 366,132.80 is: 549,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,897.60 : 553,346.40 = 366,132.80 : x
  2. Step 2: Convert to fraction form
    368,897.60/553,346.40 = 366,132.80/x
  3. Step 3: Cross multiply
    368,897.60x = 553,346.40 × 366,132.80
  4. Step 4: Simplify right side
    368,897.60x = 202,598,266,801.92
  5. Step 5: Solve for x
    x = 202,598,266,801.92/368,897.60
  6. Step 6: Final answer
    x = 549,199.20

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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.