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Finding the Fourth Proportional to 586,070.40, 879,105.60 and 528,009.60

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Solution

The fourth proportional to 586,070.40, 879,105.60 and 528,009.60 is: 792,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,070.40 : 879,105.60 = 528,009.60 : x
  2. Step 2: Convert to fraction form
    586,070.40/879,105.60 = 528,009.60/x
  3. Step 3: Cross multiply
    586,070.40x = 879,105.60 × 528,009.60
  4. Step 4: Simplify right side
    586,070.40x = 464,176,196,213.76
  5. Step 5: Solve for x
    x = 464,176,196,213.76/586,070.40
  6. Step 6: Final answer
    x = 792,014.40

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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.