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Finding the Fourth Proportional to 822,392.80, 1,134,275.88 and 707,866.36

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Solution

The fourth proportional to 822,392.80, 1,134,275.88 and 707,866.36 is: 976,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,392.80 : 1,134,275.88 = 707,866.36 : x
  2. Step 2: Convert to fraction form
    822,392.80/1,134,275.88 = 707,866.36/x
  3. Step 3: Cross multiply
    822,392.80x = 1,134,275.88 × 707,866.36
  4. Step 4: Simplify right side
    822,392.80x = 802,915,738,411.40
  5. Step 5: Solve for x
    x = 802,915,738,411.40/822,392.80
  6. Step 6: Final answer
    x = 976,316.60

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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.