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Finding the Fourth Proportional to 692,980.76, 956,332.71 and 382,903.31

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Solution

The fourth proportional to 692,980.76, 956,332.71 and 382,903.31 is: 528,417.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,980.76 : 956,332.71 = 382,903.31 : x
  2. Step 2: Convert to fraction form
    692,980.76/956,332.71 = 382,903.31/x
  3. Step 3: Cross multiply
    692,980.76x = 956,332.71 × 382,903.31
  4. Step 4: Simplify right side
    692,980.76x = 366,182,962,511.10
  5. Step 5: Solve for x
    x = 366,182,962,511.10/692,980.76
  6. Step 6: Final answer
    x = 528,417.21

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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.