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Finding the Fourth Proportional to 714,085.17, 985,437.50 and 408,168.11

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Solution

The fourth proportional to 714,085.17, 985,437.50 and 408,168.11 is: 563,271.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,085.17 : 985,437.50 = 408,168.11 : x
  2. Step 2: Convert to fraction form
    714,085.17/985,437.50 = 408,168.11/x
  3. Step 3: Cross multiply
    714,085.17x = 985,437.50 × 408,168.11
  4. Step 4: Simplify right side
    714,085.17x = 402,224,162,320.88
  5. Step 5: Solve for x
    x = 402,224,162,320.88/714,085.17
  6. Step 6: Final answer
    x = 563,271.98

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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.