Home / 1,758,521.60-2,638,657.20-693,598.40

Finding the Fourth Proportional to 1,758,521.60, 2,638,657.20 and 693,598.40

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Solution

The fourth proportional to 1,758,521.60, 2,638,657.20 and 693,598.40 is: 1,040,742.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758,521.60 : 2,638,657.20 = 693,598.40 : x
  2. Step 2: Convert to fraction form
    1,758,521.60/2,638,657.20 = 693,598.40/x
  3. Step 3: Cross multiply
    1,758,521.60x = 2,638,657.20 × 693,598.40
  4. Step 4: Simplify right side
    1,758,521.60x = 1,830,168,412,068.48
  5. Step 5: Solve for x
    x = 1,830,168,412,068.48/1,758,521.60
  6. Step 6: Final answer
    x = 1,040,742.64

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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.