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Finding the Fourth Proportional to 876,266.77, 1,209,247.64 and 473,858.77

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Solution

The fourth proportional to 876,266.77, 1,209,247.64 and 473,858.77 is: 653,924.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,266.77 : 1,209,247.64 = 473,858.77 : x
  2. Step 2: Convert to fraction form
    876,266.77/1,209,247.64 = 473,858.77/x
  3. Step 3: Cross multiply
    876,266.77x = 1,209,247.64 × 473,858.77
  4. Step 4: Simplify right side
    876,266.77x = 573,012,596,946.51
  5. Step 5: Solve for x
    x = 573,012,596,946.51/876,266.77
  6. Step 6: Final answer
    x = 653,924.83

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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.