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Finding the Fourth Proportional to 615,707.93, 849,209.21 and 529,810.77

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Solution

The fourth proportional to 615,707.93, 849,209.21 and 529,810.77 is: 730,736.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,707.93 : 849,209.21 = 529,810.77 : x
  2. Step 2: Convert to fraction form
    615,707.93/849,209.21 = 529,810.77/x
  3. Step 3: Cross multiply
    615,707.93x = 849,209.21 × 529,810.77
  4. Step 4: Simplify right side
    615,707.93x = 449,920,190,943.65
  5. Step 5: Solve for x
    x = 449,920,190,943.65/615,707.93
  6. Step 6: Final answer
    x = 730,736.39

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Double scale
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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.