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Finding the Fourth Proportional to 953,690, 1,316,045.16 and 571,642.64

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Solution

The fourth proportional to 953,690, 1,316,045.16 and 571,642.64 is: 788,838.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,690 : 1,316,045.16 = 571,642.64 : x
  2. Step 2: Convert to fraction form
    953,690/1,316,045.16 = 571,642.64/x
  3. Step 3: Cross multiply
    953,690x = 1,316,045.16 × 571,642.64
  4. Step 4: Simplify right side
    953,690x = 752,307,529,621.62
  5. Step 5: Solve for x
    x = 752,307,529,621.62/953,690
  6. Step 6: Final answer
    x = 788,838.65

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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.