Home / 784,200.30-1,176,300.45-778,295.40

Finding the Fourth Proportional to 784,200.30, 1,176,300.45 and 778,295.40

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Solution

The fourth proportional to 784,200.30, 1,176,300.45 and 778,295.40 is: 1,167,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,200.30 : 1,176,300.45 = 778,295.40 : x
  2. Step 2: Convert to fraction form
    784,200.30/1,176,300.45 = 778,295.40/x
  3. Step 3: Cross multiply
    784,200.30x = 1,176,300.45 × 778,295.40
  4. Step 4: Simplify right side
    784,200.30x = 915,509,229,252.93
  5. Step 5: Solve for x
    x = 915,509,229,252.93/784,200.30
  6. Step 6: Final answer
    x = 1,167,443.10

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1.5x scale

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.