Home / 688,537.20-1,032,805.80-578,312.40

Finding the Fourth Proportional to 688,537.20, 1,032,805.80 and 578,312.40

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Solution

The fourth proportional to 688,537.20, 1,032,805.80 and 578,312.40 is: 867,468.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,537.20 : 1,032,805.80 = 578,312.40 : x
  2. Step 2: Convert to fraction form
    688,537.20/1,032,805.80 = 578,312.40/x
  3. Step 3: Cross multiply
    688,537.20x = 1,032,805.80 × 578,312.40
  4. Step 4: Simplify right side
    688,537.20x = 597,284,400,931.92
  5. Step 5: Solve for x
    x = 597,284,400,931.92/688,537.20
  6. Step 6: Final answer
    x = 867,468.60

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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.