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Finding the Fourth Proportional to 579,416.80, 868,088.40 and 473,663.20

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Solution

The fourth proportional to 579,416.80, 868,088.40 and 473,663.20 is: 709,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,416.80 : 868,088.40 = 473,663.20 : x
  2. Step 2: Convert to fraction form
    579,416.80/868,088.40 = 473,663.20/x
  3. Step 3: Cross multiply
    579,416.80x = 868,088.40 × 473,663.20
  4. Step 4: Simplify right side
    579,416.80x = 411,181,529,426.88
  5. Step 5: Solve for x
    x = 411,181,529,426.88/579,416.80
  6. Step 6: Final answer
    x = 709,647.23

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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.