Home / 1,390,841.60-2,085,266.10-537,182.60

Finding the Fourth Proportional to 1,390,841.60, 2,085,266.10 and 537,182.60

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Solution

The fourth proportional to 1,390,841.60, 2,085,266.10 and 537,182.60 is: 805,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,841.60 : 2,085,266.10 = 537,182.60 : x
  2. Step 2: Convert to fraction form
    1,390,841.60/2,085,266.10 = 537,182.60/x
  3. Step 3: Cross multiply
    1,390,841.60x = 2,085,266.10 × 537,182.60
  4. Step 4: Simplify right side
    1,390,841.60x = 1,120,168,665,289.86
  5. Step 5: Solve for x
    x = 1,120,168,665,289.86/1,390,841.60
  6. Step 6: Final answer
    x = 805,389.10

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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.