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Finding the Fourth Proportional to 876,248.50, 1,209,222.99 and 473,840.50

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Solution

The fourth proportional to 876,248.50, 1,209,222.99 and 473,840.50 is: 653,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,248.50 : 1,209,222.99 = 473,840.50 : x
  2. Step 2: Convert to fraction form
    876,248.50/1,209,222.99 = 473,840.50/x
  3. Step 3: Cross multiply
    876,248.50x = 1,209,222.99 × 473,840.50
  4. Step 4: Simplify right side
    876,248.50x = 572,978,826,193.10
  5. Step 5: Solve for x
    x = 572,978,826,193.10/876,248.50
  6. Step 6: Final answer
    x = 653,899.92

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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.