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Finding the Fourth Proportional to 972,706.74, 1,342,617.60 and 564,900.90

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Solution

The fourth proportional to 972,706.74, 1,342,617.60 and 564,900.90 is: 779,727.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,706.74 : 1,342,617.60 = 564,900.90 : x
  2. Step 2: Convert to fraction form
    972,706.74/1,342,617.60 = 564,900.90/x
  3. Step 3: Cross multiply
    972,706.74x = 1,342,617.60 × 564,900.90
  4. Step 4: Simplify right side
    972,706.74x = 758,445,890,595.84
  5. Step 5: Solve for x
    x = 758,445,890,595.84/972,706.74
  6. Step 6: Final answer
    x = 779,727.19

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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.