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Finding the Fourth Proportional to 875,602.80, 1,313,404.20 and 560,674.80

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Solution

The fourth proportional to 875,602.80, 1,313,404.20 and 560,674.80 is: 841,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,602.80 : 1,313,404.20 = 560,674.80 : x
  2. Step 2: Convert to fraction form
    875,602.80/1,313,404.20 = 560,674.80/x
  3. Step 3: Cross multiply
    875,602.80x = 1,313,404.20 × 560,674.80
  4. Step 4: Simplify right side
    875,602.80x = 736,392,637,154.16
  5. Step 5: Solve for x
    x = 736,392,637,154.16/875,602.80
  6. Step 6: Final answer
    x = 841,012.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.