Home / 1,235,276.80-1,852,915.20-525,126.40

Finding the Fourth Proportional to 1,235,276.80, 1,852,915.20 and 525,126.40

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Solution

The fourth proportional to 1,235,276.80, 1,852,915.20 and 525,126.40 is: 787,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,276.80 : 1,852,915.20 = 525,126.40 : x
  2. Step 2: Convert to fraction form
    1,235,276.80/1,852,915.20 = 525,126.40/x
  3. Step 3: Cross multiply
    1,235,276.80x = 1,852,915.20 × 525,126.40
  4. Step 4: Simplify right side
    1,235,276.80x = 973,014,688,481.28
  5. Step 5: Solve for x
    x = 973,014,688,481.28/1,235,276.80
  6. Step 6: Final answer
    x = 787,689.60

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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.