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Finding the Fourth Proportional to 615,598.65, 849,443.76 and 343,626.98

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Solution

The fourth proportional to 615,598.65, 849,443.76 and 343,626.98 is: 474,159.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,598.65 : 849,443.76 = 343,626.98 : x
  2. Step 2: Convert to fraction form
    615,598.65/849,443.76 = 343,626.98/x
  3. Step 3: Cross multiply
    615,598.65x = 849,443.76 × 343,626.98
  4. Step 4: Simplify right side
    615,598.65x = 291,891,789,681.43
  5. Step 5: Solve for x
    x = 291,891,789,681.43/615,598.65
  6. Step 6: Final answer
    x = 474,159.24

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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.