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Finding the Fourth Proportional to 835,856.61, 1,153,603.95 and 468,358.59

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Solution

The fourth proportional to 835,856.61, 1,153,603.95 and 468,358.59 is: 646,403.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,856.61 : 1,153,603.95 = 468,358.59 : x
  2. Step 2: Convert to fraction form
    835,856.61/1,153,603.95 = 468,358.59/x
  3. Step 3: Cross multiply
    835,856.61x = 1,153,603.95 × 468,358.59
  4. Step 4: Simplify right side
    835,856.61x = 540,300,319,440.43
  5. Step 5: Solve for x
    x = 540,300,319,440.43/835,856.61
  6. Step 6: Final answer
    x = 646,403.12

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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.