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Finding the Fourth Proportional to 1,069,728.90, 1,476,158.98 and 586,259.74

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Solution

The fourth proportional to 1,069,728.90, 1,476,158.98 and 586,259.74 is: 809,001.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,728.90 : 1,476,158.98 = 586,259.74 : x
  2. Step 2: Convert to fraction form
    1,069,728.90/1,476,158.98 = 586,259.74/x
  3. Step 3: Cross multiply
    1,069,728.90x = 1,476,158.98 × 586,259.74
  4. Step 4: Simplify right side
    1,069,728.90x = 865,412,579,813.47
  5. Step 5: Solve for x
    x = 865,412,579,813.47/1,069,728.90
  6. Step 6: Final answer
    x = 809,001.78

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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.