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Finding the Fourth Proportional to 692,985, 956,319.30 and 375,033

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Solution

The fourth proportional to 692,985, 956,319.30 and 375,033 is: 517,545.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,985 : 956,319.30 = 375,033 : x
  2. Step 2: Convert to fraction form
    692,985/956,319.30 = 375,033/x
  3. Step 3: Cross multiply
    692,985x = 956,319.30 × 375,033
  4. Step 4: Simplify right side
    692,985x = 358,651,296,036.90
  5. Step 5: Solve for x
    x = 358,651,296,036.90/692,985
  6. Step 6: Final answer
    x = 517,545.54

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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.