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Finding the Fourth Proportional to 837,547.48, 1,255,813.86 and 375,840.78

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Solution

The fourth proportional to 837,547.48, 1,255,813.86 and 375,840.78 is: 563,533.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,547.48 : 1,255,813.86 = 375,840.78 : x
  2. Step 2: Convert to fraction form
    837,547.48/1,255,813.86 = 375,840.78/x
  3. Step 3: Cross multiply
    837,547.48x = 1,255,813.86 × 375,840.78
  4. Step 4: Simplify right side
    837,547.48x = 471,986,065,859.14
  5. Step 5: Solve for x
    x = 471,986,065,859.14/837,547.48
  6. Step 6: Final answer
    x = 563,533.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.