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Finding the Fourth Proportional to 615,498.11, 849,385.10 and 343,563.63

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Solution

The fourth proportional to 615,498.11, 849,385.10 and 343,563.63 is: 474,116.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,498.11 : 849,385.10 = 343,563.63 : x
  2. Step 2: Convert to fraction form
    615,498.11/849,385.10 = 343,563.63/x
  3. Step 3: Cross multiply
    615,498.11x = 849,385.10 × 343,563.63
  4. Step 4: Simplify right side
    615,498.11x = 291,817,828,223.91
  5. Step 5: Solve for x
    x = 291,817,828,223.91/615,498.11
  6. Step 6: Final answer
    x = 474,116.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.