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Finding the Fourth Proportional to 563,304.12, 840,858.57 and 521,674.57

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Solution

The fourth proportional to 563,304.12, 840,858.57 and 521,674.57 is: 778,717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,304.12 : 840,858.57 = 521,674.57 : x
  2. Step 2: Convert to fraction form
    563,304.12/840,858.57 = 521,674.57/x
  3. Step 3: Cross multiply
    563,304.12x = 840,858.57 × 521,674.57
  4. Step 4: Simplify right side
    563,304.12x = 438,654,533,986.64
  5. Step 5: Solve for x
    x = 438,654,533,986.64/563,304.12
  6. Step 6: Final answer
    x = 778,717.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.