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Finding the Fourth Proportional to 619,070.64, 928,868.40 and 338,259.84

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Solution

The fourth proportional to 619,070.64, 928,868.40 and 338,259.84 is: 507,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,070.64 : 928,868.40 = 338,259.84 : x
  2. Step 2: Convert to fraction form
    619,070.64/928,868.40 = 338,259.84/x
  3. Step 3: Cross multiply
    619,070.64x = 928,868.40 × 338,259.84
  4. Step 4: Simplify right side
    619,070.64x = 314,198,876,365.06
  5. Step 5: Solve for x
    x = 314,198,876,365.06/619,070.64
  6. Step 6: Final answer
    x = 507,533.16

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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.