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Finding the Fourth Proportional to 692,983, 956,316.54 and 375,031

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Solution

The fourth proportional to 692,983, 956,316.54 and 375,031 is: 517,542.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,983 : 956,316.54 = 375,031 : x
  2. Step 2: Convert to fraction form
    692,983/956,316.54 = 375,031/x
  3. Step 3: Cross multiply
    692,983x = 956,316.54 × 375,031
  4. Step 4: Simplify right side
    692,983x = 358,648,348,312.74
  5. Step 5: Solve for x
    x = 358,648,348,312.74/692,983
  6. Step 6: Final answer
    x = 517,542.78

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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.