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Finding the Fourth Proportional to 563,756.80, 847,708.80 and 472,518.40

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Solution

The fourth proportional to 563,756.80, 847,708.80 and 472,518.40 is: 710,515.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,756.80 : 847,708.80 = 472,518.40 : x
  2. Step 2: Convert to fraction form
    563,756.80/847,708.80 = 472,518.40/x
  3. Step 3: Cross multiply
    563,756.80x = 847,708.80 × 472,518.40
  4. Step 4: Simplify right side
    563,756.80x = 400,558,005,841.92
  5. Step 5: Solve for x
    x = 400,558,005,841.92/563,756.80
  6. Step 6: Final answer
    x = 710,515.61

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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.