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Finding the Fourth Proportional to 656,393.40, 984,590.10 and 558,415.80

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Solution

The fourth proportional to 656,393.40, 984,590.10 and 558,415.80 is: 837,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,393.40 : 984,590.10 = 558,415.80 : x
  2. Step 2: Convert to fraction form
    656,393.40/984,590.10 = 558,415.80/x
  3. Step 3: Cross multiply
    656,393.40x = 984,590.10 × 558,415.80
  4. Step 4: Simplify right side
    656,393.40x = 549,810,668,363.58
  5. Step 5: Solve for x
    x = 549,810,668,363.58/656,393.40
  6. Step 6: Final answer
    x = 837,623.70

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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.