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Finding the Fourth Proportional to 895,216.80, 1,339,714.80 and 615,280.80

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Solution

The fourth proportional to 895,216.80, 1,339,714.80 and 615,280.80 is: 920,783.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,216.80 : 1,339,714.80 = 615,280.80 : x
  2. Step 2: Convert to fraction form
    895,216.80/1,339,714.80 = 615,280.80/x
  3. Step 3: Cross multiply
    895,216.80x = 1,339,714.80 × 615,280.80
  4. Step 4: Simplify right side
    895,216.80x = 824,300,793,915.84
  5. Step 5: Solve for x
    x = 824,300,793,915.84/895,216.80
  6. Step 6: Final answer
    x = 920,783.43

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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.