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Finding the Fourth Proportional to 1,799,985.60, 2,703,088.80 and 960,177.60

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Solution

The fourth proportional to 1,799,985.60, 2,703,088.80 and 960,177.60 is: 1,441,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,799,985.60 : 2,703,088.80 = 960,177.60 : x
  2. Step 2: Convert to fraction form
    1,799,985.60/2,703,088.80 = 960,177.60/x
  3. Step 3: Cross multiply
    1,799,985.60x = 2,703,088.80 × 960,177.60
  4. Step 4: Simplify right side
    1,799,985.60x = 2,595,445,316,570.88
  5. Step 5: Solve for x
    x = 2,595,445,316,570.88/1,799,985.60
  6. Step 6: Final answer
    x = 1,441,925.60

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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.