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Finding the Fourth Proportional to 876,087, 1,209,000.06 and 473,679

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Solution

The fourth proportional to 876,087, 1,209,000.06 and 473,679 is: 653,677.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,087 : 1,209,000.06 = 473,679 : x
  2. Step 2: Convert to fraction form
    876,087/1,209,000.06 = 473,679/x
  3. Step 3: Cross multiply
    876,087x = 1,209,000.06 × 473,679
  4. Step 4: Simplify right side
    876,087x = 572,677,939,420.74
  5. Step 5: Solve for x
    x = 572,677,939,420.74/876,087
  6. Step 6: Final answer
    x = 653,677.02

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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.