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Finding the Fourth Proportional to 1,205,352, 1,663,275.82 and 715,237.06

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Solution

The fourth proportional to 1,205,352, 1,663,275.82 and 715,237.06 is: 986,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,352 : 1,663,275.82 = 715,237.06 : x
  2. Step 2: Convert to fraction form
    1,205,352/1,663,275.82 = 715,237.06/x
  3. Step 3: Cross multiply
    1,205,352x = 1,663,275.82 × 715,237.06
  4. Step 4: Simplify right side
    1,205,352x = 1,189,636,495,573.33
  5. Step 5: Solve for x
    x = 1,189,636,495,573.33/1,205,352
  6. Step 6: Final answer
    x = 986,961.90

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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.